Objective type questions for JRF/SRF/NET/ARS Exams for Fisheries Science | Objective type questions for Fisheries Science with answers

Multiple or Objective choice questions for JRF/SRF/NET/ARS Exams for Fisheries Science 

Objective Questions in  Aquaculture and Fisheries Science 

Below see questions for JRF/SRF/NET/ARS Exams for Fisheries Science. Kindly go through it and backcheck answers to all questions through online or offline resources. If, you have doubt kindly let us know.

Note: These questions have been collected by the College of Fisheries Ratnagiri, So all staff of the College of Fisheries Ratnagiri needs special thanks for the same.

            Multiple choice questions for JRF/SRF/NET/ARS Exams for Fisheries Science

1		In  fishes,  phenylalanine  is  spared  by
	a	Methoionine
	b	Tyrosine
	c	Lysin
	d	None  of  the  above
2		Biosynthetic  precursor  of  Ketone  bodies  is
	a	Acetyl  Co-A
	b	Suscinyl  Co-A
	c	Adrenyl  Co-A
	d	All  of  the  above
3		Natural  antioxidant  is
	a	Alpha  tocopherol
	b	BHA
	c	BHT
	d	None  of  the  above
4		Pepsinogen  is  secreted  by
	a	Stomach
	b	Small  Intestine
	c	Buccal  cavity
	d	Liver
5		The  frustules  of  diatoms  are  made  up  of
	a	Calcium
	b	Carbonate
	c	Phosphate
	d	Silica
6		The  method  of  rearing  Daphnia  in  a  culture  medium  made  up  of  soil,  manure  and  water  is  known  as
	a	Autotrophic
	b	Detrital
	c	Xenic
	d	Axenic
7		Diatoms  forming  a  long  chain  like  structure  are  known  as
	a	Centricae
	b	Pennatae
	c	Bathypelagic
	d	Tychopelagic
8		In  general,  Artemia  grows  from  nauplius  to  adult  stages  in  ______  days
	a	5
	b	6
	c	7
	d	8
9		Type  of  ploidy  occurs  when  1  or  more  chromosomes  are  gained  or  lost  due  to  improper  cell  division.
	a	Autopolyploidy
	b	Allopolyploidy
	c	Aneuploidy
	d	Euploidy
10		The  type  of  mutation  in  which  purine  is  substituted  by  pyrimidine  or  vice  versa
	a	Transversion
	b	Translocation
	c	Duplication
	d	Deletion
11		Name  the  process  of  mating  of  F1  hybrid  to  one  of  its  parents.
	a	Intergressive  hybridization
	b	Parental  line
	c	Test  cross
	d	Back  cross
12		Type  of  interaction  in  which  Allele  at  one  locus  alters  the  phenotypic  expression  of  an  allele  at  other  locus
	a	Modifying  gene
	b	Epistatis  interaction
	c	Complementary  gene  action
	d	Masking  gene  action
13		In India peak breeding season of common carp is ----------.
	a	Summer
	b	Winter
	c	Monsoon
	d	None of the above
14		Carp brood fishes are normally stocked at the rate of ---------- kg/hectare in brood stock ponds.
	a	1500 to 2000
	b	500 to 700
	c	500
	d	700 to 1000
15		Pituitary extract is preserved with ----------.
	a	Absolute alcohol
	b	Glycerine
	c	Acetone
	d	Freezing Multiple or Objective choice questions for Fisheries Science
16		---------- is a combination of 63% FSH and 34% LH.
	a	Synahorin
	b	Puberogen
	c	Ovaprim
	d	Prolan
17		----------- is a leading country in export of ornamental fishes.
	a	USA
	b	UK
	c	Singapore
	d	India
18		Neon tetra breeds in ------------- waters.
	a	Soft and acidic
	b	Soft and alkaline
	c	Hard and acidic
	d	Hard and alkaline
19		Free swimming larvae of ------------ feed on mucous of their parents.
	a	Angel
	b	Severum
	c	Goldfish
	d	Discus
20		Vallisneria spiralis propagates by means of ---------.
	a	Runners
	b	Top cutting
	c	Development of plantlets on stem
	d	Non of the above
21		Adults of Lates calcarifer migrate towards ____________ for spawning.
	a	River
	b	Estuary
	c	Sea
	d	Origin of river
22		_______ can be used to reduce seepage losses from ponds.
	a	Bentonite
	b	Zeolite
	c	Carbamide
	d	Hypochlorite
23		Paddle wheel aerator is an example of _______ type of aerator.
	a	Diffuser
	b	Gravity
	c	Surface
	d	Turbine
24		_______ can be constructed in dike near the water edge to stop acid runoff during rains.
	a	Berm
	b	Core
	c	Mound
	d	Crown
25		The larvae of mud crab pass through --------------------zoeal stages before metamorphosing into megalopa stage.
	a	Four
	b	Six
	c	Seven
	d	Five
26		Generally EDTA is added as chelating agent in penaeid larval rearing tanks at the rate of ---------------------mg L-1
	a	10
	b	100
	c	1000
	d	0.1
27		-------------------colour is most commonly applied on inside surface of maturation tanks in penaeid shrimp hatcheries.
	a	White
	b	Yellow
	c	Green
	d	Black
28		The larvae of Macrobrachium rosenbergii exhibit schooling behavior up to ------------------- stage.
	a	Fifth
	b	Seventh
	c	Eighth
	d	Ninth
29		The most important characteristic of an antibody utilized for detection of pathogen is
	a	Valence
	b	Specificity
	c	Memory
	d	Quantity
30		The primary lymphoid organs in teleosts are ……..
	a	Spleen and epigonal organ
	b	Thymus and head kidney
	c	Liver and intestine
	d	Skin and bone marrow
31		Interferons are cellular proteins produced mainly in response to ……..
	a	Virus infection
	b	Bacterial infection
	c	Fungus infection
	d	Parasitic infection
32		Match the pairs Virus type Disease caused 1 Iridovirus A Lymphocystis 2 Herpesvirus B Channel Catfish Viral Diseases 3 Birnavirus C Infectious Pancreatic Necrosis Virus 4 Orthomixovirus D Infectious Salmon Anaemia
	a	1-A, 2-B, 3-C, 4-D
	b	1-B, 2-C, 3-D, 4-A
	c	1-C, 2-D, 3-A, 4-B
	d	1-D, 2-A, 3-B,4- C
33		The sequence 5´-AGTCTGACT-3´ in DNA is equivalent to which sequence in RNA?
	a	5´-AGUCUGACU-3´
	b	5´-UGTCTGUTC -3´
	c	5´-UCAGUCUGA-3´
	d	5´-AGUCAGACU-3´
34		Denaturation of double stranded DNA involves….
	a	Breakage into short double stranded fragments
	b	Separation into single strands
	c	Hydrolysis of DNA backbone
	d	Cleavage of the bases from the sugar phosphate backbone
35		The number of replicon in a typical mammalian cell is….
	a	40-200
	b	400
	c	1000-2000
	d	50,000-1,00,000
36		In prokaryotes the lagging strand primers are removed by…
	a	3´ to 5´ exonuclease
	b	DNA ligase
	c	DNA polymerase I
	d	DNA polymerase III
37		Polyculture of fishes were first developed in--
	a	India
	b	China
	c	Thailand
	d	Taiwan
38		The average fish consumption in urban part of India is
	a	1 to 2 kg/person/year
	b	3 to 5 kg/person/year
	c	6 to 8 kg/person/year
	d	8 to 10 kg/person/year
39		Measurment of carbonate and bicarbonate ions is a--
	a	Hardness
	b	Alkalinity
	c	Transparency
	d	Turbidity
40		The book Classic of Fish Culture was written by--
	a	H. B. Wilson
	b	Fan Lei
	c	T. V. R. Pillay
	d	V. G. Zingran Objective Questions in  Aquaculture and Fisheries Science
41		Pistia is a type of weed
	a	Floating
	b	Submerged
	c	Marginal
	d	Algal weed
42		The stocking density of freshwater prawn for monoculture practice is
	a	20,000 numbers/ha
	b	40,000 numbers/ha
	c	10,000 numbers/ha
	d	25,000 numbers/ha
43		Which chemical is used to control aquatic insect?
	a	Hi-oxide
	b	Bleaching powder
	c	Lime
	d	Formalin
44		Which is the active ingredient content in Derris Root Powder?
	a	Saponin
	b	Rotenone
	c	Both 1 and 2
	d	None of this
45		Fishes  feeding  on  single  type  of  feed  are  known  as
	a	Stenophagic
	b	Monophagic
	c	Euryphagic
	d	Carnivorous
46		The  complex  of  protein  with  carbohydrate  is  known  as
	a	Lipoprotein
	b	Glycoprotein
	c	Metalloprotein
	d	None  of  the  above
47		The  blood  of  freshwater  fishes   has  an  osmotic  pressure  of
	a	300 mosm/lit
	b	200 mosm/lit
	c	400 mosm/lit
	d	100 mosm/lit
48		Major  nitrogenous  waste  products  excreted  by  fish
	a	Urea
	b	Ammonia
	c	Uric  acid
	d	Amino  acid
49		In  batch  culture  of  algae,  the  volume  of  innoculum  should  be  _________ %  of  the  final  culture  volume.
	a	2 -10
	b	20 – 30
	c	15 – 25
	d	18 -25
50		The  alveolar  layer  of  Artemia  cyst  can  be  dissolved  by  the  oxidation  treatment  with
	a	Calcium
	b	Sodium
	c	Carbide
	d	Hypochloride 51 The  brood  pouch  of  artemia  female  is  situated  just  behind  the  _________  pair  of  thoracopods.  a 10th b 9th c 11th d 12th 52 For  lab  culture  of  micro  algae,  artificial  illumination  should  be  available  for  minimum  for  ___________  hours. a 12 b 24 c 18 d 6 53 Type  of  inversion  which  involves  only  one  arm  of  chromosome  without  involvement  of  centromere a paracentric b pericentric c acentric d dicentric 54 Name  the  enzyme  due  to  which  the  non  sister  chromatids  of  homologous  pair  twist  over  each  other  a Klenow  enzyme b polymerase  enzyme c endonuclease  d ligase  55 Term  used  for  Back  crossing  to  one  of  the  parental  lines a Isogenic  lines b Introgressive  hybridization  c Inter-racial  hybridization d Intergressive  hybridization 56 Term  used  for  the  region  from  5’  initiator  codon  to  3’  terminal  codon a TATA  Box b CAAT  Box c Open  reading  frame d Sense  codon 57 The specific gravity of Chinese carp eggs is ---------- that of IMC. a More than b Equal to c Less than d None of the above 58 Each milliliter of ovaprim, a synthetic hormonal preparation contains ---------- sGnRH and ---------- domperidone. a 20 mg, 10µg b 0.2 mg, 10µg c 20 µg, 10 mg d 2.0 mg, 10µg 59 A product of incubation period in days and average temperature during incubation is called as ----------. a Latency period b Equilibrium time c Degree days d None of the above 60 Aerial respiration in Clarius batrachus commences after ---------- days of hatching. a 20 to 22 b 4 to 5 c 10 to 12 d 5 to 10 61 ----------- is a leading country in export of ornamental fishes. a USA b UK c Singapore d India 62 Discus breeds in ------------- waters. a Soft and acidic b Soft and alkaline c Hard and acidic d Hard and alkaline 63 In male live bearing fishes, anterior rays of -------- fin are modified in to gonopodium. a Dorsal b Pectoral c Pelvic d Anal 64 Eggs of goldfish are ---------- in nature. a Floating b Adhesive c Semi-adhesive d None of the above 65 _______ zone is generally preferred for semi-intensive farming  system. a Inter-tidal           b Supra-tidal c Low lying areas d None of  the above 66 Ca( Mg)CO3 is commonly known as ________. a Agricultural lime stone b Burnt lime        c Hydrated lime d Dolomite 67 Bag nets are provided with _____ line to avoid overloading of shrimps. a Lazy    b Lure c Scare d Loope 68 Particles of lime smaller than _______ micron are most effective. a 50 b 40 c 55 d 60 69 Protozoeal larval stages of Penaeus monodon feed on  -------------- a Diatoms b Freshly hatched Artemia nauplii c Rotifers d None of the above Objective Questions in  Aquaculture and Fisheries Science  70 --------------- are generally used for production of cultchless spats. a Polythene sheets b Coconut shells c Oyster shells d Roofing tiles 71 ------------------ larva of Holothuria scabra is sleeper shaped. a Doliolaria b Pentacula c Auricularia d None of the above 72 The Japanese system of penaeid shrimp hatchery is also known as ------- system. a Unfertilized b Community c Feeding d Small larval rearing tank Multiple or Objective choice questions for Fisheries Science  73 ----- is the major haematopoietic organ in fish a Bone marrow b Spleen c Head kidney d Thymus 74 ----- is an iron binding glycoprotein that deprives bacterial pathogens of iron. a Transferrin b Interferon c Metallotheonin d C-reactive protein 75 Deficiency of -------- gives rise to scoliosis and lordosis in fish a Vitamin A b Vitamin B c Vitamin C d Vitamin D 76 Match the pairs Deficiency Symptoms 1 Manganese A Lower hatchability/ Skeletal deformities 2 Phosphorous B Anorexia and dark coloration 3 Selenium C Depressed growth 4 Iron D Hypo chromic normocytic anemia a 1-A, 2-B, 3-C, 4-D b 1-B, 2-C, 3-D, 4-A c 1-C, 2-D, 3-A, 4-B d 1-D, 2-A, 3-B,4- C 77 Transformation is… a The take up of a plasmid into a bacterium b The expression of a gene in a bacterium c The take up of a bacteriophage into a bacterium d The isolation of a plasmid from a bacterium 78 In agarose gel electrophoresis… a DNA migrates towards negative electrode b Super coiled plasmids migrate slower than their nicked counterparts c larger molecules migrate faster than smaller molecules d Ethidium bromide can be used to visualize the DNA 79 Which one of the following statements about PCR is false a The PCR cycle involves Denaturation of the template, annealing of the primers and polymerization of nucleotides. b PCR uses thermo stable polymerases c Ideally, PCR primers should be of similar length and G + C content PCR optimization usually includes varying the magnesium concentration and the polymerization temperature d If PCR was 100% efficient, one target molecule would amplify to 2n after n cycles 80 Which of the following list of features correctly apply to the genetic code? a Triplet, degenerate, nearly universal, comma-less, non overlapping b Triplet, universal, comma-less, degenerate, non overlapping c Overlapping, triplet, comma-less, degenerate, nearly universal d Overlapping, comma-less, non degenerate, nearly universal, triplet 81 First scientific fish farm in India was constructed under the guidance of -- a H. B. Vora b H. B. Wilson c G. E. Fogg d Lo-Chai Chen 82 Pen culture is a -- a Barrier in bay b Fixed or floating c Both 1 and 2 d Raceway 83 Two or more species culture in the same pond is known as -- a Polyculture b Monoculture c Raceway culture d Pen culture 85 Cold water fish culture can be undertaken at temperature a More than 180C b Less than 180C c Above 300C d Both 1 and 2 86 Hydrilla is a type of weed a Algal weed b Submerged weed c Marginal weed d Floating weed 87 Cyprinus carpio nudus is known as --- a Mirror carp b Scale carp c Leather carp d Major carps 88 Ranatra is a -- a Back swimmer b Water strider c Water stick insect d Giant bug 89 Which of the following is a predatory catfish? a Clarius batrachus b Lates calcarifer c Catla catla d Chanos chanos 90 Ammonia  produced  in  the  liver  of  fish  is  converted  into  non  toxic  form  in  the  blood  called  a Glutamine b Uric  acid c Creatine d Creatinine 91 Water  stability  of  shrimp  feed  should  be  minimum  of  a 30  min b 45  min c 2  hrs d 24  hrs 92 The  feed  intake  can  be  increased  by  addition  of  a Antioxidents  b Pigments c Attractants d None  of  the  above 93 The  digestion  of  protein  is  efficient  in a Herbivorous  fishes b Carnivorous  fishes c Omnivorous  fishes d Detritivorous  fishes 94 Unfertilized  mictic  eggs  of  rotifers  produces  a Male b Female c Cyst d None  of  the  above 95 The  cells  of  marine  algae  are  washed  with  isotonic  ­­___________  to  remove  salts  without  bursting  of  cells. a Ammonium  formate b Ammonium  chloride  c Ammonium  nitrate  d Ammonium  sulphate 96 Constant  illumination  is  required  for  culture  of  a Flagellates  b Rotifers c Diatoms d Artemia 97 While  harvesting  of  algal  cells,  following  chemical  is  used  for  coagulation  and  precipitation  of  cells  at  bottom a Ferric  chloride b Ammonium  chloride c Ferric  sulphate d Ammonium  nitrate   98 Name  the  type  of  translocation  in  which  exchange  of  segments  between  two  non-homologous  chromosomes  occur  a Reciprocal  translocation b Shift  translocation c Simple  translocation d Reverse  translocation 99 The  phenomenon  of  the  production  of  additional  or  secondary  phenotypes  because  of  influence  of  gene a Complementary  gene  effect b Inhibitory  effect c Masking  effect d Pleiotrophism 100 Name  the  type  of  mutation  that  abolishes  expression  of  a gene a Null  Mutation b Dominant  mutation c Recessive  mutation d Co-dominant  mutation Objective Questions in  Aquaculture and Fisheries Science   Answer key :                              Q. No. Ans Q. No. Ans Q. No. Ans Q. No. Ans 1 b 12 b 23 c 34 b 2 a 13 b 24 a 35 d 3 a 14 a 25 d 36 c 4 a 15 b 26 a 37 b 5 b 16 b 27 d 38 b 6 b 17 c 28 a 39 b 7 d 18 a 29 b 40 b 8 d 19 d 30 b 41 a 9 c 20 a 31 a 42 b 10 a 21 c 32 a 43 a 11 d 22 a 33 a 44 b Q. No. Ans Q. No. Ans Q. No. Ans Q. No. Ans 45 b 56 c 67 a 78 d 46 b 57 a 68 d 79 d 47 a 58 c 69 a 80 a 48 b 59 c 70 a 81 b 49 a 60 c 71 c 82 a 50 d 61 c 72 b 83 a 51 c 62 a 73 c 84 - 52 c 63 d 74 a 85 b 53 a 64 b 75 c 86 c 54 c 65 b 76 a 87 c 55 b 66 d 77 a 88 c Q. No. Ans Q. No. 89 a 100    a 90 c 91 c