A sequential expression of a set of human genes
Options
(a) messenger RNA (b) DNA sequence (c) ribosome (d) transfer RNA
Correct Answer:
DNA sequence
Explanation:
A sequential expression of a set of […]
Compared to a bull a bullock is docile because of
Options
(a) higher levels of cortisone (b) lower levels of blood testosterone (c) lower levels of adrenaline/ noradrenaline in its blood (d) higher levels […]
Spore dissemination in some liverworts is aided by
Options
(a) indusium (b) calyptra (c) peristome teeth (d) elaters
Correct Answer:
elaters
Explanation:
Elater is an elongated, spirally thickened, water-attracting cell in the capsule of […]
What is common between parrot, platypus and kangaroo?
Options
(a) Toothless jaws (b) Functional post-end tail (c) Ovoparity (d) Homeothermy
Correct Answer:
Homeothermy
Explanation:
No explanation available. Be the first to write the […]
Inheritances of skin colour in humans is an example of
Options
(a) point mutation (b) polygenic inheritance (c) codominance (d) chromosomal aberration
Correct Answer:
polygenic inheritance
Explanation:
Inheritance of skin colour in human […]
Male gametes in angiosperms are formed by the division of
Options
(a) generative cell (b) vegetative cell (c) microspore mother cell (d) microspore
Correct Answer:
generative cell
Explanation:
Generative cell which is a […]
Which one of the following is a viral disease of poultry ?
Options
(a) Coryza (b) New castle disease (c) Pasteurellosis (d) Salmonellosis
Correct Answer:
New castle disease
Explanation:
No explanation available. Be the […]
Which one of the following is surrounded by a callose wall?
Options
(a) male gamete (b) egg (c) pollen grain (d) microscope mother cell
Correct Answer:
microscope mother cell
Explanation:
MMC (megaspore mother […]
The wavelength of light absorbed by Pr form of phytochrome is
Options
(a) 680 nm (b) 720 nm (c) 620 nm (d) 640 nm
Correct Answer:
680 nm
Explanation:
The Pr form absorbs light […]
One of the important consequences of geographical isolation is
Options
(a) preventing speciation (b) speciation through reproductive isolation (c) random creation of new species (d) no change in the isolated fauna
Correct Answer: […]
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