Question

After meiosis within pollen sacs, haploid structures formed is called ______.

Options

• megaspores

• stamens

• microspores

• sporophytes

Answer 1

After meiosis within pollen sacs, haploid structures formed is called microspores.

Explanation:

Within the pollen sacs (anthers) of a flower, diploid microspore mother cells undergo meiosis to produce four haploid microspores. This process, called microsporogenesis, results in haploid microspores that develop into pollen grains, the male gametophytes. These microspores usually separate and are dispersed for fertilization. Thus, the haploid structures formed after meiosis in pollen sacs are microspores, not megaspores, stamens, or sporophytes.