Questions: In the sporic meiosis life cycle (alternation of generations), in what type of cells does mitosis occur? Remember that a 1 N cell has one set of chromosomes per nucleus, and a 2 N cell has two sets of chromosomes per nucleus. mitosis does not occur in this life cycle both 1 N and 2 N cells 2 N cells only 1 N cells only

The answer is the second one: both 1 N and 2 N cells.

Explanation: In the sporic meiosis life cycle, also known as the alternation of generations, both haploid (1 N) and diploid (2 N) phases undergo mitosis. Here’s a brief explanation of each option:

1. Mitosis does not occur in this life cycle: This is incorrect. Mitosis is a crucial part of the alternation of generations, allowing for growth and development in both the haploid and diploid stages.

2. Both 1 N and 2 N cells: This is correct. In the alternation of generations, the diploid sporophyte (2 N) undergoes mitosis to grow and develop. Similarly, the haploid gametophyte (1 N) also undergoes mitosis to produce gametes and grow.

3. 2 N cells only: This is incorrect. While 2 N cells (sporophytes) do undergo mitosis, 1 N cells (gametophytes) also undergo mitosis in this life cycle.

4. 1 N cells only: This is incorrect. While 1 N cells (gametophytes) do undergo mitosis, 2 N cells (sporophytes) also undergo mitosis in this life cycle.

Summary: In the sporic meiosis life cycle, mitosis occurs in both 1 N (haploid) and 2 N (diploid) cells, allowing for the growth and development of both the gametophyte and sporophyte generations.