Strategies For Enhancement In Food Production Question 70

Question: G. hirsutum is [CPMT 1999; JIPMER 2001]

Options:

A) Old world diploid

B) Old world tetraploid

C) New world diploid

D) New world tetraploid

Show Answer

Answer:

Correct Answer: D

Solution:

G.

hirsutum is an American (New World) crop which is tetraploid having 26 pairs of chromosomes, and seem to have originated by hybridisation between Asiatic diploid cotton having 13 pairs of large chromosomes and some American cotton with 13 pairs of small chromosomes.