Question

The number of chromosomes in the shoot tip cells of a wheat plant is 42. The number of chromosomes in the microspore mother cells of the same plant shall be ______.

Options

• 21

• 42

• 84

• 14

Answer 1

The number of chromosomes in the shoot tip cells of a wheat plant is 42. The number of chromosomes in the microspore mother cells of the same plant shall be 42.

Explanation:

Microspore mother cells undergo meiosis to form microspores (haploid, n), but initially, they are diploid with the same chromosome number as the shoot tip cells. Hence, they have 42 chromosomes in wheat, which is diploid.