Question

What is correct when chromosome number in leaf cells of an angiosperm is $22$?

• A. $44$ in stem cells
• B. $44$ in embryo
• C. $22$ in gametes
• D. $11$ in gametes

Answer 1

Answer: (D)

$11$ in gametes

$n$ number of chromosome of male gametes is fuse with $n$ number of chromosomes of egg then form embryo. after that it forms shoot AM which has $2n$ chromosome and root AM which also have $2n$ chromosomes. Shoot AM forms leaf/steam with $2n$ chromosomes,

Give,

$2n=22$

$n=11$

gametes has $n$ number of chromosomes .Therefore, Correct option is D.