Which statement describes events leading to formation of off

Which statement describes events leading to formation of offspring in the conifer life cycle?

A diploid pollen grain produced by the male sporophyte enters the female sporophyte and fuses with a haploid megasporangium. A haploid pollen grain produced by the male sporophyte enters the female sporophyte and fuses with a haploid megasporangium. A diploid sperm from pollen enters the female gametophyte and fuses with a diploid egg. A haploid sperm from pollen enters the female gametophyte and fuses with a haploid egg.

Sporophyte Gametophyte Male microstrobohus microsporocyte microspores pollen Female megastrobolus megasporocyte megaspores egg

Solution

The correct answer is option (d).

A haploid sperm from pollen enters the female gametophyte and fuses with a haploid egg.

Conifers are included under the gymnosperms. They produce both male and female cones for the process of fertilization. Megaspores develop into female gametophytes and microspores develop into pollen. They are haploid spores. A haploid sperm from pollen enters the female gametophyte and fuses the haploid egg.

3.

The correct answer is option (b)

The sporophyte generation is much larger than the gametophyte generation and the two generations grow in a single individual.

4.

The correct answer is option (c)

In between the sporophyte and gametophyte headings