Question

select the correct statement(s) about meiosis and genetic variation.
because of meiosis, a high genetic diversity of a population is maintained.
meiosis is necessary in many sexually - reproducing animals to ensure the same number of chromosomes in the offspring as in the parents.
meiosis also produces genetic variation by way of the process of recombination.
a population can adapt to changes in the environment as a result of the genetic variation resulting from meiosis.
during meiosis, variation occurs because each gamete contains a mixture of genes from two different parent chromosomes in sexual reproduction.

Explanation:

1. Meiosis generates genetic diversity via recombination and independent assortment, maintaining population diversity.
2. Meiosis halves chromosome number in gametes; fertilization restores parental chromosome count in offspring.
3. Recombination (crossing over) during prophase I of meiosis swaps genetic material, creating variation.
4. Genetic variation from meiosis enables populations to adapt to environmental changes through natural selection.
5. Gametes get one chromosome from each homologous pair (mix of parental genes), causing variation.

Answer:

All statements are correct:

• Because of meiosis, a high genetic diversity of a population is maintained.
• Meiosis is necessary in many sexually-reproducing animals to ensure the same number of chromosomes in the offspring as in the parents.
• Meiosis also produces genetic variation by way of the process of recombination.
• A population can adapt to changes in the environment as a result of the genetic variation resulting from meiosis.
• During meiosis, variation occurs because each gamete contains a mixture of genes from two different parent chromosomes in sexual reproduction.