Protein present in silk fibre is
Options
(a) collagen (b) fibroin (c) elastin (d) casein
Correct Answer:
fibroin
Explanation:
Silk protein fibroin (β-keratin protein) is produced by modified salivary glands of silk worms […]
Pullorum disease of poultry is caused by
Options
(a) Haemophilus (b) Salmonella (c) Mycobacterium (d) Clostridium
Correct Answer:
Salmonella
Explanation:
Pullorum disease is an infectious, egg-transmitted, disease of poultry caused by the bacteria. […]
Quarantine regulation are concerned with
Options
(a) spraying of diseased plants with insecticide (b) prevention of entry of diseased plants in country (c) growing or entry of diseased plants in country (d) promotion […]
Reproducing new plants by cells instead of seeds is known as
Options
(a) mutation (b) antibodies (c) tissue culture (d) biofertilizer
Correct Answer:
tissue culture
Explanation:
Plant tissue culture is the technique of […]
Silkwork silk is the product of
Options
(a) salivary gland of adult (b) salivary gland of larvae (c) salivary gland of pupa (d) salivary gland of egg cells
Correct Answer:
salivary gland of […]
Somaclonal variations are the variations
Options
(a) caused by mutagenic chemicals (b) produced during sexual embryogeny (c) produced during tissue culture (d) caused by (gamma) rays
Correct Answer:
produced during tissue culture
Explanation: […]
Somatic hybridization is a technique of
Options
(a) natural breeding (b) natural pollination (c) artificial pollination (d) somatic cells hybridization
Correct Answer:
somatic cells hybridization
Explanation:
No explanation available. Be the first to […]
The larva of Bombyx mori is known as
Options
(a) nymph (b) trochophore (c) cocoon (d) caterpillar
Correct Answer:
caterpillar
Explanation:
No explanation available. Be the first to write the explanation for this […]
The process of micropropagation is the formation of new plants from
Options
(a) tissue (b) vegetative cells (c) plant parts (d) either tissue or plant parts
Correct Answer:
either tissue or plant parts
The quickest method of plant breeding is
Options
(a) introduction (b) selection (c) hybridization (d) mutation breeding
Correct Answer:
mutation breeding
Explanation:
Plant breeding is the technique used to improve the variety of […]
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