To obtain virus- free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken ?
Options
(a) Apical meristem only (b) Palisade parenchyma (c) […]
Which of the following enhances or induces fusion of protoplasts ?
Options
(a) Polyethylene glycol and sodium nitrate (b) IAA and kinetin (c) IAA and gibberellins (d) Sodium chloride and potassium chloride
Correct […]
Outbreeding is an important strategy of animal husbandry because it :
Options
(a) is useful in producing purelines of animals (b) is useful inovercoming inbreeding depression (c) exposes harmful recessive genes that are […]
A technique of micropropagation is :
Options
(a) Somatic embryogenesis (b) Protoplast fusion (c) Embryo rescue (d) Somatic hybridization
Correct Answer:
Somatic embryogenesis
Explanation:
Development of embryo like structure from explant by the method […]
Gumboro disease is caused by
Options
(a) fungus (b) bacteria (c) virus (d) ticks and mites
Correct Answer:
virus
Explanation:
Infectious Bursal disease (IBD), or Gumboro disease, is a viral disease affecting young […]
Heterosis is also called
Options
(a) mutation (b) hybrid vigour (c) variation (d) hybrid sterility
Correct Answer:
hybrid vigour
Explanation:
Hybrid vigour or heterosis is defined as the superiority of the hybrid over […]
Honey is
Options
(a) acidic (b) alkaline (c) salty (d) neutral
Correct Answer:
neutral
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
In crop improvement programmes, virus free clones can be obtained through
Options
(a) embryo culture (b) shoot apex culture (c) grafting (d) hybridization
Correct Answer:
shoot apex culture
Explanation:
Apical meristems or shoot […]
In high yielding hybrid crop varieties, to exploit hybrid vigour, the farmers need to purchase fresh hybrid seed every year, because
Options
(a) it is cheaper to purchase fresh seed (b) hybrid vigour […]
In honey, the main constituent is
Options
(a) calcium (b) sugar (c) protein (d) none of these
Correct Answer:
sugar
Explanation:
Honey is a mixture of sugar, minerals, water and antibodies. Sugar content […]
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