What is alternation of generation?

Question

Answer

Alternation of Generation

Definition:

The alternation of generation is a reproductive strategy seen in some plants and algae, where two different multicellular stages alternate in the life cycle.

Explanation:

In plants, the two alternating stages are the sporophyte (diploid) and the gametophyte (haploid).
The sporophyte produces spores through meiosis, which develop into the gametophyte.
The gametophyte then produces gametes (eggs and sperm) through mitosis, which fuse to form a zygote, developing into a sporophyte.
This cycle continues, with each generation giving rise to the next in a continuous loop.

Significance:

Alternation of generation allows for genetic diversity through the mixing of different genetic material during the process of fertilization.
It also provides a way for plants to adapt to different environments and conditions, as different stages may be better suited to different ecological niches.