In hexaploid wheat the haploid(n) and basic (x) no. of chromosomes are

A. n = 21, x = 7

B. n = 7, x = 21

C. n = 21, x = 21

D. n = 14, x = 7

Answer: Option A

Solution(By Examveda Team)

In hexaploid wheat the haploid (n) and basic (x) no. of chromosomes are n = 21, x = 7.
Hexaploid wheat possesses 42 chromosomes derived from its three ancestral genomes. The 21 pairs of chromosomes can be further divided into seven groups of six chromosomes (one chromosome pair being derived from each of the three ancestral genomes), based on the similarity of their gene order.