Aquaculture Multiple Choice Questions (MCQ) with Answers

1

In 
fishes,  phenyalanine  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

Aquaculture and Fisheries MCQ

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

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

            Aquaculture and Fisheries
Objective Questions

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

                  Aquaculture and Fisheries
MCQ

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

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

Aquaculture
and Fisheries Objective questions with answers

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

Aquaculture
and Fisheries Objective questions with answers

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

Aquaculture
and Fisheries MCQ  with answers

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

70

————— are
generally used for production of cultchless spats.

a

Polythene sheets

b

Coconut shells

c

Oyster shells

d

Roofing tiles

Aquaculture
and Fisheries MCQ  with answers

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

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

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

Aquaculture
and Fisheries MCQ  with answers

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

Aquaculture
and Fisheries MCQ  with answers

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

Aquaculture
and Fisheries MCQ  with answers

101

Name  the 
table  or  chart 
or  diagram  representing  the 
ancestors  of  an 
individual 

a

Karyotype

b

Idiotype

c

Pedigree

d

Family

102

———- spawns in
small grassy pits.

a

Magur

b

Asian sea bass

c

Rohu

d

Greasy grouper

103

Purified HCG is
available in the trade name of ­———-.

a

Sumach

b

Puberogen

c

Prolan

d

Sigma

104

Indian major carps
spawn naturally in spawning grounds characterised by ———- water
conditions.

a

Flowing and deeper

b

Stagnant and shallow

c

Flowing and shallow

d

Stagnant and deeper

105

Spawning of fishes
on water surface is called as ———- spawning.

a

Muffled

b

Sympathetic

c

Floating

d

None of the above

106

A thermostatic
heater of ——- watt is required to maintain constant temperature in
all-glass tank of 50 litre capacity.

a

50

b

100

c

150

d

200

107

———– is a
carnivorous fish

a

Tiger shark

b

Red-tail shark

c

Albino red-tail
shark

d

Arowana

108

For breeding of neon
tetra, the pH of water should be in the range of ———-.

a

5.5 – 6.5

b

4.5 – 5.5

c

6.5 – 7.5

d

7.5 – 8.0

109

Find an odd one

a

Neon tetra

b

Rosy barb

c

Zebra danio

d

Pearl gourami

110

The two stage
rearing of milkfish is known as ________ method.

a

Modular          

b

Progression

c

Valli

d

Model

Aquaculture
and Fisheries MCQ  with answers

111

_______  is used for eradication of crabs.

a

Tea seed cake 

b

MOC

c

Derris root

d

Tobacco dust

112

_______ can be
applied for absorption of ammonia from pond bottom sediments.

a

Gypsum          

b

Sevin

c

Zeolite

d

Lime

113

The traditional
system of brackish water aquaculture in West Bengal
is known as _________

a

Gheris

b

Kharlands

c

Pokkali fields

d

Bheris

114

The ovary of ripe
green mussel female is ————— colour

a

Orange

b

Brown

c

Green

d

Yellow

115

——————-
is one of the larval stages of lobster.

a

Mysis

b

Megalopa

c

Zoea

d

Phyllosoma

116

——————
is used to improve hatching rate.

a

EDTA

b

Sodium thiosulphate

c

Sodium hypochlorite

d

lime

117

Generally spawning
in Holothuria scabra is induced by ————method

a

Thermal stimulation

b

Electric shock

c

Chemical

d

Mechanical