Q. In the hexaploid wheat, the haploid (n) and basic (x) numbers of chromosomes are
A) n = 21 and x = 21
B) n = 21 and x = 14
C) n = 21 and x = 7
D) n = 7 and x = 21
Explanation
[Solution from source] Bread wheat is hexaploid with 2n = 6x = 42. Its gametes carry n = 21 chromosomes, and the basic set is x = 42/6 = 7. Options that equate n and x ignore that n here contains three basic sets. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.