Fisheries Science Objective Questions with Answers
Fisheries Science Objective Questions with Answer for NET/JRF/JOBS
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Name the animal group whose members are considered doubtful chordates:
- a) Hernichordata
Answer: Hernichordata
-
Balanoglossus is having ———— feeding habit:
- a) Ciliary feeder
Answer: Ciliary feeder
-
In cephalochordates respiration takes place:
- a) Through general body surface
Answer: Through general body surface
-
Ductus Cuvieri is another name for:
- a) Cardinal veins
Answer: Cardinal veins
-
In vertebrates, the pharyngeal gill slits are not more than:
- a) 8 pairs
Answer: 8 pairs
-
Which period is known as the age of fishes:
- a) Devonian
Answer: Devonian
-
Which phosphagen is utilized by vertebrates in cycles of muscle contraction:
- a) Creatine
Answer: Creatine
-
The eggs of lampreys are:
- a) Telolecithal
Answer: Telolecithal
-
Anticoagulant in Petromyzon is secreted by:
- a) Salivary glands
Answer: Salivary glands
-
Crania! nerves in cyclostomes are:
- a) 8-10 pairs
Answer: 8-10 pairs
-
Body in Scoliodon is covered by:
- a) Placoid scales
Answer: Placoid scales
-
Sphincter valve is present:
- a) At the junction of cardiac stomach and pyloric stomach
Answer: At the junction of cardiac stomach and pyloric stomach
-
Sinus venosus receives blood from:
- a) Ductus Cuvieri and hepatic sinuses
Answer: Ductus Cuvieri and hepatic sinuses
-
Kidney in Chondrichthyes is:
- a) Opisthonephric
Answer: Opisthonephric
-
The principal locomotory organ in Rohu is:
- a) Tail
Answer: Tail
-
Family of Cowfish is:
- a) Ostraciidae
Answer: Ostraciidae
-
The eggs of fishes are:
- a) Mega lecithal, extra embryonic membranes absent
Answer: Mega lecithal, extra embryonic membranes absent
-
The caudal fins in Latimeria is:
- a) 3 lobed
Answer: 3 lobed
-
The teeth in frog are meant for:
- a) Preventing prey from slipping
Answer: Preventing prey from slipping
-
Erythrocytes in Amphibians are:
- a) Oval and nucleated
Answer: Oval and nucleated
-
Neoteny refers to:
- a) Retention of larval characteristics in adults
Answer: Retention of larval characteristics in adults
-
Paedogenesis refers to:
- a) Precocious development of gonads
Answer: Precocious development of gonads
-
Uromastix is commonly known as:
- a) Spiny-tailed lizard
Answer: Spiny-tailed lizard
-
Heart in crocodiles is:
- a) Completely 4 chambered
Answer: Completely 4 chambered
-
Which layer of Lamellidens shell is called “Mother of Pearl”:
- a) Nacreous
Answer: Nacreous
-
Microsystis is a ————- type of algae:
- a) Blue-green algae
Answer: Blue-green algae
-
Fins for propulsion:
- a) Caudal fin
Answer: Caudal fin
-
Labeo bata is:
- a) Bottom feeder
Answer: Bottom feeder
-
A taxonomic group of any rank in the system of classification is known as:
- a) Taxon
Answer: Taxon
-
Each pelvic fin is supported by how many fin rays:
- a) 9
Answer: 9
-
World Wetlands Day is celebrated on:
- a) 2 February
Answer: 2 February
-
Headquarters of International Union for Conservation of Nature and Natural Resources is located at:
- a) Gland, Switzerland
Answer: Gland, Switzerland
-
Largest freshwater fish in the world and was declared extinct in December 2019:
- a) Chinese paddlefish
Answer: Chinese paddlefish
-
Common Indian Sea urchin:
- a) Salmacis bicolor
Answer: Salmacis bicolor
-
5 elongated pectoral fin rays:
- a) Polynemus indicus
Answer: Polynemus indicus
-
Mackerel present on Andaman:
- a) Rastrelliger brachysoma
Answer: Rastrelliger brachysoma
-
Pole culture is mainly for:
- a) Mussel
Answer: Mussel
-
Chemical used for controlling blue-green algae (algal bloom):
- a) CuSO4 Sol @ 1 ppm or CuSO4 @ 800 gm/ha
Answer: CuSO4 Sol @ 1 ppm or CuSO4 @ 800 gm/ha
-
Artificial substrata for settlement of spat is called:
- a) Cultch
Answer: Cultch
-
Agonist of Dopamine:
- a) Bromocryptine, Apomorfine
Answer: Bromocryptine, Apomorfine
-
Function of Nidamental gland:
- a) Acts as a site of sperm storage and egg shell formation
Answer: Acts as a site of sperm storage and egg shell formation
-
Tryptophan deficiency results in:
- a) Scoliosis
Answer: Scoliosis
-
Sea Food Export Association of India (SEAI) is in:
- a) Cochin
Answer: Cochin
-
Zooplankton which is almost absent in marine water:
- a) Rotifer
Answer: Rotifer
-
National Maritime Day:
- a) 5th April
Answer: 5th April
-
Young ones showing superior character during heterosis is known as:
- a) Hybrid vigour
Answer: Hybrid vigour
-
Random mating of population is:
- a) Panmictic mating
Answer: Panmictic mating
-
The animals which can replace their teeth once in their life span is:
- a) Acrodont
Answer: Acrodont
-
The transmission of genes or character from parents to offspring without any change:
- a) Linkage
Answer: Linkage
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It is a cross where the offspring are in the ratio of 1:1 is called:
- a) Test cross
Answer: Test cross
Credits: Dr. Mohd Ashraf Rather, Assistant Professor, SKUAST-K