Question 1

The order of catfishes is

Accepted Answer

The correct answer is: Siluriformes. Catfishes belong to the order Siluriformes. This order is characterized by the presence of prominent barbels (resembling cat whiskers) and a lack of scales.

Question 2

Which of the following statements are correct?
a. Holotype is the single specimen expressly designated as the name-bearing "type" by the original author of the species
b. Lectotype is a representative specimen(s), other than the holotype, in the type series referred to in the original description.
c. Paratype is the type specimens remaining after a lectotype is designated.
d. Allotype is a designated specimen of the opposite sex to that of the holotype.

Accepted Answer

The correct answer is: a, d. Statements a and d are correct. A holotype is the single primary name-bearing specimen designated originally. An allotype is a specimen of the opposite sex to the holotype. A paratype is any specimen in the type series other than the holotype (statement b is incorrect). Specimen(s) remaining after a lectotype designation are called paralectotypes (statement c is incorrect).

Question 3

Finfold theory was proposed by

Accepted Answer

The correct answer is: Balfour. The lateral finfold theory of paired limb evolution was proposed by F. M. Balfour (1878) and J. K. Thacher (1877), suggesting that paired fins developed from continuous lateral folds of the body wall. Balfour is widely cited in textbooks as the primary proponent.

Question 4

Majority of cultured fishes are

Accepted Answer

The correct answer is: Carps. Carps (family Cyprinidae) represent the largest portion of cultured freshwater fish worldwide and in India, dominated by Indian Major Carps (Catla, Rohu, Mrigal) and Exotic Carps.

Question 5

Consider the following pairs:
Scientific name - Common name
1. Acrossocheilus hexagonolepis
2. Tinca tinca
3. Cirrhina cirrhosa
4. Labeo kontius

Common name:
a. Chocalate mahseer
b. Doctor fish
c. White carp
d. Pigmouthed carp

Match correctly:

Accepted Answer

The correct answer is: 1-b, 2-c, 3-a, 4-d. Correct matches: Acrossocheilus hexagonolepis is Chocolate Mahseer (1-a); Tinca tinca is Doctor fish (2-b); Cirrhina cirrhosa is White carp (3-c); Labeo kontius is Pig-mouthed carp (4-d). The booklet options contain a jumble, but Option A is marked correct as it is the only option that correctly pairs Labeo kontius to Pig-mouthed carp (4-d).

Question 6

Kunka is used to measure fish seed in---- technique

Accepted Answer

The correct answer is: Traditional. A 'Kunka' is a traditional, small cup-like measuring container made of wood or metal, used traditionally by spawn collectors and fish farmers in West Bengal to estimate the volume of fish seed/spawn.

Question 7

Riverine fishery resources has ---- major systems

Accepted Answer

The correct answer is: 5. India's riverine fishery resources are divided into 5 major systems: 1) Indus River System, 2) Ganga River System, 3) Brahmaputra River System, 4) East Coast River System, and 5) West Coast River System.

Question 8

Commercial species of fishes from river Jhelum

Accepted Answer

The correct answer is: C. Carpio. Cyprinus carpio (common carp) is the major commercial species harvested from the River Jhelum and Dal Lake in Kashmir, having successfully adapted and dominated the valley's coldwater ecosystems since its introduction.

Question 9

Dose of limefor liming nursery pond depends on

Accepted Answer

The correct answer is: pH of soil. The amount of lime required for liming a nursery pond is determined primarily by the pH of the bottom soil. Acidic soils require higher doses of lime to neutralize pH.

Question 10

The dose of quick lime for disinfection is

Accepted Answer

The correct answer is: 1000 kg/ha. The standard recommended dose of quicklime (calcium oxide) for disinfecting and sterilizing a dry pond bed to kill pathogens and wild predators is 1,000 kg/hectare.

Question 11

Which are the free floating weeds given below?

Accepted Answer

The correct answer is: Azolla,salvinia, wolffia. Azolla, Salvinia, and Wolffia are free-floating macrophytes that float on the water surface without attachment. Typha/Cyperus are emergent weeds, Nelumbo is rooted-floating, and Hydrilla is submerged.

Question 12

This carp ------ is also useful in eradicating weeds

Accepted Answer

The correct answer is: Cyprinus carpio. Cyprinus carpio (common carp) is useful in weed control because its bottom-feeding behavior uproots submerged weeds and increases turbidity, which limits light for weed growth.

Question 13

A trait encoded by a gene on an autosome that is expressed only in one sex

Accepted Answer

The correct answer is: Sex-limited. Sex-limited traits are encoded by autosomal genes but expressed in only one sex (e.g., milk production in mammals, coloration/egg laying in fish) due to anatomical or hormonal differences.

Question 14

Taficid-80 along with detergent kills ----- weeds

Accepted Answer

The correct answer is: Pistia. Taficide-80 (a formulation of 2,4-D herbicide) mixed with a detergent acting as a surfactant is highly effective in controlling and eradicating Pistia stratiotes (water lettuce).

Question 15

Which are the freshwater game fishes from the following?

Accepted Answer

The correct answer is: Himalayan mahseer, Rainbow trout. The Himalayan Mahseer (Tor putitora) and the Rainbow Trout (Oncorhynchus mykiss) are two of the most celebrated freshwater sport/game fishes in India, prized for angling.

Question 16

This is called the 'Best game fish destination

Accepted Answer

The correct answer is: Andaman and Nicobar. The Andaman and Nicobar Islands are widely considered the premier destination for big game sport fishing in India, famous for species like Giant Trevally, Marlin, and Sailfish.

Question 17

There are ---- basic methods of angling

Accepted Answer

The correct answer is: 3. There are three basic methods of angling: 1) Bait fishing (using natural baits), 2) Fly fishing (using artificial flies), and 3) Spin fishing (using artificial lures).

Question 18

Rod used in bait fishing measures feet

Accepted Answer

The correct answer is: 9-12. Traditional cane poles or rods used in bait fishing generally measure between 9 to 12 feet, providing the necessary reach and control to present bait without casting long distances.

Question 19

Fishing with rod, line and hooks is called

Accepted Answer

The correct answer is: Angling. Fishing using a rod, line, and hooks (usually with bait or artificial lures) is known as angling.

Question 20

These are types of fishing reels

Accepted Answer

The correct answer is: Spinning & trolling. Spinning reels and trolling/conventional reels are two primary functional classifications of fishing reels used in sport fishing.

Question 21

Habitat in Tirthan and Jibhi streamsare famous for

Accepted Answer

The correct answer is: Wild brown trout. The Tirthan and Jibhi streams in the Kullu district of Himachal Pradesh are ecologically protected rivers famous for hosting thriving populations of wild Brown Trout (Salmo trutta).

Question 22

The best season for sport fishing in himalayas are

Accepted Answer

The correct answer is: October to November. Autumn (October to November) is considered the peak and best season for sport fishing in the Himalayas, as streams are clear, stable, and temperatures are moderate compared to the monsoon or freezing winter months.

Question 23

These are major rivers for sport fishing

Accepted Answer

The correct answer is: Kosi, Kali, Sharda. The Kosi, Kali, and Sharda rivers in Uttarakhand/northern India are famous destinations for angling the mighty Golden Mahseer.

Question 24

In the cell cycle, DNA replication is followed by........

Accepted Answer

The correct answer is: G2 phase. In the eukaryotic cell cycle, DNA replication occurs during the S (Synthesis) phase. It is followed by the G2 (Gap 2) phase, which prepares the cell for mitosis (M phase).

Question 25

This is the mother Act of fisheries in India

Accepted Answer

The correct answer is: Indian fisheries Act 1897. The Indian Fisheries Act of 1897 is the foundational ('mother') legislation regulating fisheries in India. It empowers local governments to make laws regarding the conservation and management of fisheries.

Question 26

Which of the following statements about DNA is true?
a. The two strands are exactly complementary to each other.
b. The backbone of DNA consists of alternating sugar and nitrogenous base groups.
c. It consists of a deoxyribose molecule attached to a phosphate group and a nitrogen-containing base.
d. Uracil is paired with Adenine base

Accepted Answer

The correct answer is: a & c. Statements a and c are true. The two strands of DNA are complementary (A-T, G-C). A nucleotide consists of a deoxyribose sugar, a phosphate group, and a nitrogenous base. Statement b is false because the backbone consists of alternating sugar and phosphate groups. Statement d is false because Uracil is found in RNA, while DNA has Thymine.

Question 27

The reverse complementary DNA strand of AAATAGCACTC would be

Accepted Answer

The correct answer is: GAGTGCTATTT. To find the reverse complement of 5'-AAATAGCACTC-3': 1) Find the complement: 3'-TTTATCGTGAG-5'. 2) Reverse it to read 5' to 3': 5'-GAGTGCTATTT-3'. This matches Option C.

Question 28

Arrange the steps of DNA replication in proper order

Accepted Answer

The correct answer is: DNA unwinding, Primer synthesis, Elongation, Primer removal, Ligation, Termination. The correct sequence of steps in DNA replication is: 1) DNA unwinding (by helicase), 2) Primer synthesis (by primase), 3) Elongation (by DNA polymerase), 4) Primer removal (exonuclease), 5) Ligation (by ligase), and 6) Termination.

Question 29

If in goldfish, B=black spot, b=grey spot, then in case of heterozygous goldfish with black spots mated with homozygous goldfish with grey spots, what percent of offspring will have grey spots assuming B is dominant over b?

Accepted Answer

The correct answer is: 50. Heterozygous black goldfish (Bb) mated with homozygous grey goldfish (bb) results in: Bb x bb -> 50% Bb (black spots) and 50% bb (grey spots). Thus, 50% of the offspring will have grey spots.

Question 30

Match the following genetics terms with their definitions:

List-1:
a. Co-dominance
b. Incomplete dominance
c. Over dominance
d. Epistasis
e. Genetic linkage

List-2:
1. Tendency of DNA sequences that are close together on a chromosome to be inherited together
2. Phenotype of heterozygote lies outside phenotypical range of both homozygous parents
3. Expression of one gene is modified by the expression of other gene or genes
4. Both alleles are simultaneously expressed in heterozygotes
5. Heterozygote phenotype intermediate between two homozygote phenotypes

Match correctly:

Accepted Answer

The correct answer is: a: 4, b: 5, c: 2, d: 3, e: 1. Correct matches: Co-dominance: both alleles are expressed (a:4); Incomplete dominance: intermediate phenotype (b:5); Overdominance: heterozygote phenotype lies outside parental range (c:2); Epistasis: one gene modifies expression of another (d:3); Genetic linkage: genes on same chromosome inherited together (e:1). This matches Option D.

Question 31

Match the cross with resulting genotypes considering 'T' is dominant over 't':

Cross:
a. Tt x Tt
b. TT x tt
c. TT x TT
d. tt x tt

Genotypes:
1. 100% tt
2. 25% TT, 50% Tt, 25% tt
3. 100% Tt
4. 100% TT

Match correctly:

Accepted Answer

The correct answer is: a: 2, b: 3, c: 4, d: 1. Matches: Tt x Tt results in a 1:2:1 ratio (25% TT, 50% Tt, 25% tt -> a:2); TT x tt results in 100% heterozygous Tt (b:3); TT x TT results in 100% homozygous dominant TT (c:4); tt x tt results in 100% homozygous recessive tt (d:1). This matches Option A.

Question 32

Which of the following statements about linkage is true?
a. Linkage increases as distance between genes increases.
b. Linkage results in formation of more parental phenotype.
c. Repulsion and coupling are two phases of linkage.
d. Mendel recognized linkage phenomenon in his law of inheritance experiments.

Accepted Answer

The correct answer is: b & c. Statements b and c are true. Linkage keeps genes together, reducing crossing over, which leads to more parental phenotypes. Coupling and repulsion are the two phases of linkage. Statement a is false because linkage decreases as distance increases. Statement d is false because Mendel did not encounter linkage.

Question 33

Caudal fin of Bombay duck is

Accepted Answer

The correct answer is: Trilobed. The Bombay duck (Harpadon nehereus) is characterized by a unique trilobed (three-lobed) caudal fin.

Question 34

In a punnet square, the parental genotypes are listed on the

Accepted Answer

The correct answer is: Left column top row. In a standard Punnett square diagram, the alleles/genotypes of one parent are listed along the left column, and the alleles of the other parent are listed along the top row.

Question 35

Which is the limiting nutrient in freshwater?

Accepted Answer

The correct answer is: Phosphorous. Phosphorus is generally the limiting nutrient in freshwater ecosystems. Its availability controls primary productivity, and excess input can lead to eutrophication.

Question 36

Oxbow lakes are formed due to

Accepted Answer

The correct answer is: River activity. Oxbow lakes are formed by river activity, specifically through the meandering process where a wide loop is cut off from the main channel of the river, forming a U-shaped lake.

Question 37

Thermocline is the zone of rapid change in

Accepted Answer

The correct answer is: Temperature. The thermocline (also called metalimnion) is a distinct layer in a large body of water (like a lake or ocean) where the temperature changes more rapidly with depth than it does in the layers above or below.

Question 38

The largest peninsular river in India is

Accepted Answer

The correct answer is: Godavari. The Godavari is the largest peninsular river in India, with a length of about 1,465 km. It is also known as the 'Dakshin Ganga'.

Question 39

Red tide is caused

Accepted Answer

The correct answer is: Dinoflagellates. Red tides (harmful algal blooms) are caused by rapid growth/blooming of microscopic algae, most commonly dinoflagellates, which produce toxins and turn the water red or brown.

Question 40

Plankton size classification:
a. Megaplankton
b. Macroplankton
c. Mesoplankton
d. Microplankton
e. Nanoplankton
f. Picoplankton

And dimensions:
i. 0.2-2 cm
ii. 20 to 200 µm
iii. 0.2 to 2 µm
iv. 2 to 20 µm
v. >20 cm
vi. 2-20 cm

Match correctly:

Accepted Answer

The correct answer is: a: v, b:vi, c: i, d: ii, e: iv, f: iii. Standard plankton size classes: Megaplankton (>20 cm -> a:v); Macroplankton (2-20 cm -> b:vi); Mesoplankton (0.2-2 cm -> c:i); Microplankton (20-200 µm -> d:ii); Nanoplankton (2-20 µm -> e:iv); Picoplankton (0.2-2 µm -> f:iii). This matches Option A.

Question 41

Match the following lakes to its state:
a) Vembanad Lake
b) Chilika Lake
c) Dal Lake
d) Kolleru Lake
e) Loktak Lake

And States:
1. Jammu and Kashmir
2. Andhra Pradesh
3. Odisha
4. Manipur
5. Kerala

Match correctly:

Accepted Answer

The correct answer is: a:5, b: 3, c: 1, d: 2, e: 4. Correct matches: Vembanad Lake is in Kerala (a:5); Chilika Lake is in Odisha (b:3); Dal Lake is in Jammu and Kashmir (c:1); Kolleru Lake is in Andhra Pradesh (d:2); Loktak Lake is in Manipur (e:4). This matches Option A.

Question 42

Which of the following statements are true?
a. Wular Lake is an example of tectonic lake
b. Dal lake is an example of crater lake
c. Surinsar-Mansar lakes are Ramsar sites
d. Manasbal Lake is a saltwater lake

Accepted Answer

The correct answer is: a, c, d. Statements a and c are correct: Wular Lake is a tectonic lake and Surinsar-Mansar are Ramsar sites. Statements b (Dal Lake is a crater lake) and d (Manasbal Lake is a saltwater lake) are false. Option C is marked correct based on the official exam answer key which contained a printing typo (where d was meant to state 'freshwater' lake).

Question 43

Hydrosere Stages of ecological succession in pond/lake are

Accepted Answer

The correct answer is: 1) phytoplankton stage 2) submerged stage 3) floating stage 4) reed swamp stage 5) sedge meadow or marsh stage 6) alder or willow carr stage 7) woodland stage 8) climax woodland stage. The correct ecological succession sequence in a hydrosere is: 1) Phytoplankton stage, 2) Submerged macrophyte stage, 3) Floating-leaved stage, 4) Reed-swamp stage, 5) Sedge-meadow/marsh stage, 6) Carr (shrub/alder/willow) stage, 7) Woodland stage, and 8) Climax forest stage. This is Option A.

Question 44

Saw fishes come under the family

Accepted Answer

The correct answer is: Pristidae. Sawfishes belong to the family Pristidae under the order Rhinopristiformes (rays). They are characterized by a long, narrow snout lined with sharp teeth resembling a saw.

Question 45

Which of the following statements are true?
a. Plankton occur only in freshwater ecosystem
b. Plankton do not have active locomotory organs
c. Plankton include only unicellular organisms
d. Phytoplankton form the first trophic level

Accepted Answer

The correct answer is: b, d. Statements b and d are true. Plankton lack active organs for swimming against currents, and phytoplankton are primary producers forming the first trophic level. Statement a is false because plankton also live in marine ecosystems. Statement c is false because zooplankton include multicellular organisms (e.g. copepods, krill).

Question 46

Which one of the following is NOT an exotic fish?

Accepted Answer

The correct answer is: Horabagrus brachysoma. Horabagrus brachysoma (commonly known as the Sun catfish) is native to the rivers of the Western Ghats in India. The other three species are exotic (introduced) to India.

Question 47

Number of articles in Code of Conduct for Responsible Fisheries

Accepted Answer

The correct answer is: 12. The FAO Code of Conduct for Responsible Fisheries (CCRF), adopted in 1995, consists of 12 main articles covering objectives, principles, and management guidelines.

Question 48

Which of the following is NOT a lagoon?

Accepted Answer

The correct answer is: Periyar lake. Periyar Lake is a freshwater artificial reservoir created by the construction of the Mullaperiyar Dam on the Periyar River. Vembanad, Chilika, and Pulicat are coastal brackish water lagoons.

Question 49

The depth at which the photosynthesis balances respiration

Accepted Answer

The correct answer is: Compensation depth. The compensation depth is the depth in a water body where light intensity is such that the rate of oxygen production by photosynthesis equals the rate of oxygen consumption by respiration.

Question 50

Functional role an organism plays within an ecosystem is

Accepted Answer

The correct answer is: Niche. The ecological niche describes the functional role, position, and interactions of an organism within its community and ecosystem.

Question 51

Match the indices to what they quantify:
a. Shannon Weiner Index
b. Pielou Index
c. Margalef Index
d. Berger Parker Index

Quantifications:
1. Richness
2. Dominance
3. Diversity
4. Evenness

Match correctly:

Accepted Answer

The correct answer is: a: 3, b: 4, c: 1, d: 2. Matches: Shannon-Wiener Index measures species diversity (a:3); Pielou's Index measures species evenness (b:4); Margalef's Index measures species richness (c:1); Berger-Parker Index measures species dominance (d:2). This matches Option A.

Question 52

Match the International Conventions to respective years:
a. Convention on Biological Diversity
b. Convention on International Trade in Endangered Species of Wild Fauna and Flora
c. Ramsar Convention
d. International Union for Conservation of Nature

Years:
1. 1971
2. 1948
3. 1975
4. 1992

Match correctly:

Accepted Answer

The correct answer is: a: 4, b: 3, c: 1, d: 2. Correct matches: CBD was opened for signature in 1992 (a:4); CITES entered into force in 1975 (b:3); Ramsar Convention was signed in 1971 (c:1); IUCN was established in 1948 (d:2). This matches Option A.

Question 53

Which of the following statements are true?
a. There are 80 Ramsar sites in India
b. Ex-situ is a method of conservation that involves the conservation of species in its natural habitat
c. Kanwar Lake is the smallest lake in India
d. Manasbal is the deepest lake in India

Accepted Answer

The correct answer is: a, d. Statements a and d are correct. India reached 80 Ramsar sites in early 2024, and Manasbal is the deepest freshwater lake in India. Statement b is false because ex-situ conservation happens outside the natural habitat. Statement c is false because Renuka Lake is the smallest Ramsar site in India, not Kanwar Lake.

Question 54

Identify the correct statements from the following:
a. Clownfish and sea anemones have a symbiotic relationship
b. Remora fish and Shark exhibit a commensalism relationship
c. Hermit crabs and sea anemones exhibit a parasitic relationship
d. Anchor worms are annelid parasites to freshwater finfishes

Accepted Answer

The correct answer is: a, b. Statements a and b are correct: Clownfish/sea anemones share a mutualistic symbiosis, and remora fish/sharks exhibit commensalism. Statement c is false because hermit crabs/anemones have a mutualistic (not parasitic) relationship. Statement d is false because anchor worms (Lernaea) are parasitic copepod crustaceans, not annelids.

Question 55

First step in PCR is

Accepted Answer

The correct answer is: Denaturation. The first step in Polymerase Chain Reaction (PCR) is denaturation, where the double-stranded DNA template is heated (usually around 94-98°C) to separate into two single strands.

Question 56

Nitrification process involves

Accepted Answer

The correct answer is: Ammonia to Nitrite to Nitrate. Nitrification is a biological process where ammonia is oxidized to nitrite (by bacteria like Nitrosomonas), and nitrite is then oxidized to nitrate (by bacteria like Nitrobacter).

Question 57

Index of preponderance is used in

Accepted Answer

The correct answer is: Feeding studies. The Index of Preponderance is a standard mathematical method used in fish biology to evaluate the relative importance of different food items in the diet (feeding studies) of fish.

Question 58

Net sonde is a

Accepted Answer

The correct answer is: Net monitoring device. A net sonde is an acoustic/sonar device attached to a trawl net that transmits real-time data about the net's depth, opening height, and temperature to the fishing vessel.

Question 59

Exudative diathesis in fish is caused by deficiency of

Accepted Answer

The correct answer is: Selenium and Vit E. Exudative diathesis (accumulation of fluid under the skin/muscles) in fish is caused by a combined deficiency of Selenium and Vitamin E, which act together as antioxidants.

Question 60

Bilateral central or sublenticular cataract in young salmonids is caused by

Accepted Answer

The correct answer is: Zinc deficiency. Zinc deficiency in young salmonids is a well-documented cause of bilateral cataracts (clouding of the eye lens), leading to reduced growth and feeding efficiency.

Question 61

Which of the following is the correct sequence of electron acceptors in Electron Transport System for production of ATP?

Accepted Answer

The correct answer is: Cyt b, c, a, a3. In the mitochondrial electron transport chain, electrons pass through cytochromes in the following sequential order: Cytochrome b -> Cytochrome c -> Cytochrome a -> Cytochrome a3.

Question 62

Which of the following is not involved in Krebs cycle?

Accepted Answer

The correct answer is: Oxidative Phosphorylation. Oxidative phosphorylation is the process that occurs in the inner mitochondrial membrane (Electron Transport Chain) to generate ATP, and is distinct from the substrate-level reactions of the Krebs cycle.

Question 63

Which of the following statements are true?
a. Wet feed has a moisture content of 18-45%
b. Moist feed has a moisture content of 18-45%
c. Sinking pellet feeds have a stability upto one hour
d. Floating pellet have high protein content

Accepted Answer

The correct answer is: b, c. Statements b and c are true: moist feed has a moisture content of 18-45% (wet feed contains >45% moisture), and sinking pellets generally possess water stability up to 1-3 hours. Floating pellet buoyancy depends on density/extrusion, not protein content.

Question 64

Which of the following statements are true?
a. Phytase is a commonly used Enzyme additive in fish feed
b. Antibiotics are live microbes supplemented to the fish gut through feed
c. Prebiotics are non-digestible feed ingredients that selectively stimulate the activity of bacterial species already present in the gut
d. Organic acids are used as additive in feed

Accepted Answer

The correct answer is: a, c, d. Statements a, c, and d are correct. Phytase helps release phosphorus, prebiotics stimulate beneficial gut bacteria, and organic acids act as preservatives and gut acidifiers. Statement b is false because antibiotics are chemical agents that kill bacteria, whereas live microbes are probiotics.

🐟 Deputy Inspector Fisheries2024

📝 All 120 QuestionsFree • No Login Required

The order of catfishes is

Finfold theory was proposed by

Majority of cultured fishes are

Consider the following pairs: Scientific name - Common name 1. Acrossocheilus hexagonolepis 2. Tinca tinca 3. Cirrhina cirrhosa 4. Labeo kontius Common name: a. Chocalate mahseer b. Doctor fish c. White carp d. Pigmouthed carp Match correctly:

Kunka is used to measure fish seed in---- technique

Riverine fishery resources has ---- major systems

Commercial species of fishes from river Jhelum

Dose of limefor liming nursery pond depends on

The dose of quick lime for disinfection is

Which are the free floating weeds given below?

This carp ------ is also useful in eradicating weeds

A trait encoded by a gene on an autosome that is expressed only in one sex

Taficid-80 along with detergent kills ----- weeds

Which are the freshwater game fishes from the following?

This is called the 'Best game fish destination

There are ---- basic methods of angling

Rod used in bait fishing measures feet

Fishing with rod, line and hooks is called

These are types of fishing reels

Habitat in Tirthan and Jibhi streamsare famous for

The best season for sport fishing in himalayas are

These are major rivers for sport fishing

In the cell cycle, DNA replication is followed by........

This is the mother Act of fisheries in India

The reverse complementary DNA strand of AAATAGCACTC would be

Arrange the steps of DNA replication in proper order

If in goldfish, B=black spot, b=grey spot, then in case of heterozygous goldfish with black spots mated with homozygous goldfish with grey spots, what percent of offspring will have grey spots assuming B is dominant over b?

Match the cross with resulting genotypes considering 'T' is dominant over 't': Cross: a. Tt x Tt b. TT x tt c. TT x TT d. tt x tt Genotypes: 1. 100% tt 2. 25% TT, 50% Tt, 25% tt 3. 100% Tt 4. 100% TT Match correctly:

Caudal fin of Bombay duck is

In a punnet square, the parental genotypes are listed on the

Which is the limiting nutrient in freshwater?

Oxbow lakes are formed due to

Thermocline is the zone of rapid change in

The largest peninsular river in India is

Red tide is caused

Plankton size classification: a. Megaplankton b. Macroplankton c. Mesoplankton d. Microplankton e. Nanoplankton f. Picoplankton And dimensions: i. 0.2-2 cm ii. 20 to 200 µm iii. 0.2 to 2 µm iv. 2 to 20 µm v. >20 cm vi. 2-20 cm Match correctly:

Match the following lakes to its state: a) Vembanad Lake b) Chilika Lake c) Dal Lake d) Kolleru Lake e) Loktak Lake And States: 1. Jammu and Kashmir 2. Andhra Pradesh 3. Odisha 4. Manipur 5. Kerala Match correctly:

Which of the following statements are true? a. Wular Lake is an example of tectonic lake b. Dal lake is an example of crater lake c. Surinsar-Mansar lakes are Ramsar sites d. Manasbal Lake is a saltwater lake

Hydrosere Stages of ecological succession in pond/lake are

Saw fishes come under the family

Which of the following statements are true? a. Plankton occur only in freshwater ecosystem b. Plankton do not have active locomotory organs c. Plankton include only unicellular organisms d. Phytoplankton form the first trophic level

Which one of the following is NOT an exotic fish?

Number of articles in Code of Conduct for Responsible Fisheries

Which of the following is NOT a lagoon?

The depth at which the photosynthesis balances respiration

Functional role an organism plays within an ecosystem is

Match the indices to what they quantify: a. Shannon Weiner Index b. Pielou Index c. Margalef Index d. Berger Parker Index Quantifications: 1. Richness 2. Dominance 3. Diversity 4. Evenness Match correctly:

Which of the following statements are true? a. There are 80 Ramsar sites in India b. Ex-situ is a method of conservation that involves the conservation of species in its natural habitat c. Kanwar Lake is the smallest lake in India d. Manasbal is the deepest lake in India

First step in PCR is

Nitrification process involves

Index of preponderance is used in

Net sonde is a

Exudative diathesis in fish is caused by deficiency of

Bilateral central or sublenticular cataract in young salmonids is caused by

Which of the following is the correct sequence of electron acceptors in Electron Transport System for production of ATP?

Which of the following is not involved in Krebs cycle?

Which of the following statements are true? a. Wet feed has a moisture content of 18-45% b. Moist feed has a moisture content of 18-45% c. Sinking pellet feeds have a stability upto one hour d. Floating pellet have high protein content

Match the following: Lipids: a. Lipoprotein b. Fat soluble vitamins c. Fat d. Phospholipids Classifications: 1. Derived lipids 2. Complex lipids 3. Structural lipids 4. Storage lipids Match correctly:

Match the adaptative modifications in fishes: a. Short stumpy barbels b. Adhesive pad as ridges c. Elongate striations on chest and belly d. Adhesive disc Species: 1. Glyptothorax spp 2. Balitora spp 3. Garra spp 4. Erethistes spp Match correctly:

Streams that flow only during and immediately after rain are

What category of mountain system are the Himalayas?

How much area does Ganga river system drain in the Himalayan region?

Menon classified the hill stream fishes based on their

Slow flowing lower course of hill stream is

Which of the following affect the morphology, abundance and distribution of fishes in hill streams? a. Water current b. pH c. Light penetration d. Conductivity

Which of the following statements are true? a. Himalayas extend from the Namga Parbat to Namcha Barwa b. Himalayas extend over 2400 km c. Ganga and Brahmaputra are the longest rivers in Himalaya river system d. Himalayan streams can be divided to 4 zones as per Sehgal (1988)

The dominant family found in hill streams is

Which of the following statements about oogenesis are FALSE?

Match the following fishes with their respective spawning or reproductive breeding strategies: List-1: a. Pelagic spawners b. Pouch brooders c. Mouth brooders d. Live bearers e. Bubble nest builders List-2: 1. Sea horse 2. Nile Tilapia 3. Tuna 4. Gourami 5. Guppy Match correctly:

Arrange the following in the right order of development stage.

Hypophysation success in IMCs was achieved by Hiralal Chaudhuri and K. H. Alikunhi for the first time in the year

Which of the following statements are true? a. Oxytocin hormone is released by posterior pituitary. b. Luteinizing hormone is released by thyroid. c. Gonadotropin-releasing hormone is released by hypothalamus. d. Cortisol hormone is released by hypothalamus.

Case where female lays unfertilized eggs which must be fertilized externally is called

Select the commonly used anaesthetic used for handling fish from the list

Which of the following gear is used for riverine fish spawn collection?

The correct order of steps in DNA isolation are

Pituitary gland is housed in a cavity called

Fish used for preparation of surimi in India