The amount of genetic variation produced during meiosis is related to __________.
(Select all that apply.)
the amount of crossing-over that occurs
the number of chromosomes in the cell
the number of cells produced during a meiotic division
the size of the cell
I think the answers are A and C
The purpose of meiosis is to produce a diploid cell from two haploid cells that is distinct from the original diploid cell that gave rise to each haploid cell. The number of cells produced from meiosis is constant. It's always diploid to haploid (i.e., 2n to n). Crossing over is the only event that can change the amount of genetic variation from the answer choices described.
Yes, you are correct. The amount of genetic variation produced during meiosis is related to the amount of crossing-over that occurs (option A) and the number of cells produced during a meiotic division (option C). During meiosis, genetic variation is created through the processes of crossing-over (exchange of genetic material between homologous chromosomes) and independent assortment (random distribution of chromosomes into daughter cells). The amount of crossing-over that occurs and the number of cells produced during meiosis contribute to the overall genetic variation in the resulting gametes. Options B (the number of chromosomes in the cell) and D (the size of the cell) are not directly related to the amount of genetic variation produced during meiosis.
You are correct, the amount of genetic variation produced during meiosis is related to both the amount of crossing-over that occurs (option A) and the number of cells produced during a meiotic division (option C).
During meiosis, crossing-over occurs between homologous chromosomes, resulting in the exchange of genetic material between them. This process increases genetic variation by shuffling and recombining different combinations of alleles.
Additionally, meiosis produces four genetically unique haploid cells (gametes) as a result of two rounds of cell division. Each of these cells contains a different combination of chromosomes and alleles, further contributing to genetic variation.
However, the number of chromosomes in the cell (option B) and the size of the cell (option D) do not directly affect the amount of genetic variation produced during meiosis.
Therefore, the correct answers are options A and C.