Question

Meiosis does not occur in
A. Asexually reproducing diploid individuals
B. Sexually reproducing haploid individuals
C. Sexually reproducing diploid individuals
D. All of the above

Answer 1

“Meiosis is a type of cell division that produces four daughter cells, each with half of the chromosomes of the parent cell.”
A single cell divides twice to produce four haploid daughter cells during meiosis. The gametes — sperm in males and eggs in females – are these cells. The meiosis process is separated into two parts. Each level is further broken into phases.

Complete answer:
Option A: Meiosis is the process by which one diploid eukaryotic cell divides into four haploid cells, sometimes referred to as gametes. Because meiosis is required for sexual reproduction, it is found in all eukaryotes that reproduce sexually. Archaea and bacteria, which reproduce by asexual processes such as mitosis or binary fission, do not go through meiosis.
So option A is correct.
Option B: Meiosis and fertilisation alternate during the sexual life cycle. A diploid cell divides into haploid cells during meiosis, and two haploid cells (gametes) combine to form a diploid zygote during fertilisation.
So option B is not correct.
Option C: When sexually reproducing diploid individuals also undergo mitosis, as they do in a haploid-diploid cycle, sexual diploids take over the entire population.
So option C is not correct.
Option D: Asexual reproduction does not include meiosis. The process of creating gametes (eggs and sperm) is known as meiosis. Asexual reproduction has an advantage over sexual reproduction when the environment is stable (unchanging) and a particular organism is well adapted to it.
So option D is not correct.

So option A is the correct answer.

Note:
Although the overall cell division process is similar in both mitosis and meiosis, they differ in two important aspects:
1. Recombination: During meiosis, the genes in each pair of chromosomes obtained from each parent are shuffled between them. It results in the formation of recombinant chromosomes with distinct genetic combinations in each gamete. Mitosis, on the other hand, happens only when DNA damage needs to be repaired, and it usually occurs between identical sister chromatids with no genetic change.
2. Meiosis results in the formation of four genetically distinct cells, each with half the number of chromosomes as the parent cell. Mitosis, on the other hand, results in the formation of two genetically identical cells with the same number of chromosomes as the parent cell.