Question

A pollen grain is ______.

Options

• first a haploid and then a diploid structure

• first a diploid and then a haploid structure

• a diploid structure

• a haploid structure

Answer 1

A pollen grain is a haploid structure.

Explanation:

A pollen grain is a haploid structure because it develops from a microspore, which is formed after meiosis and contains a single set of chromosomes. It remains haploid until fertilization occurs. Thus, a pollen grain is not diploid at any stage but is always haploid.