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Questions
1. Define meiosis.
2. Is the DNA replicated after meiosis 1? Why or why not?
3. Describe the main difference between metaphase I and metaphase II.
4. State the phase where each of the following processes occurs: (a) sister chromatids separate, (b)homologous chromosomes
form pairs, (c) two haploid cells form.
5. What is final product of meiosis?​


Sagot :

Answer:

1. A type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.

2. Meiosis, divided into meiosis I and meiosis II, is a process in which a diploid cell divides itself into four haploid cells. Note that meiosis II immediately follows meiosis I; DNA replication does not occur after meiosis I.

3. In Metaphase 1, paired homologous chromosomes line up along the equator of the cell. However, in mitosis and Metaphase 2, it is sister chromatids that line up along the equator of the cell. ... At the end four cells are formed.

4. In anaphase I, centromeres break down and homologous chromosomes separate. In telophase I, chromosomes move to opposite poles; during cytokinesis the cell separates into two haploid cells.

5. Cytokinesis splits the chromosome sets into new cells, forming the final products of meiosis: four haploid cells in which each chromosome has just one chromatid. In humans, the products of meiosis are sperm or egg cells.

Explanation:

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