Question

In a male gametophyte, ploidy of tube cell and a male gamete is ______.

Options

• both are haploid

• both are diploid

• tube cell is haploid and male gamete is diploid

• tube cell is diploid and male gamete is haploid

Answer 1

In a male gametophyte, ploidy of tube cell and a male gamete are both haploid.

Explanation:

In a male gametophyte (pollen grain) of flowering plants, all cells formed are haploid (n).

• Tube cell → haploid (n)
• Male gamete → haploid (n)