Compare chromosome behaviors during mitosis and meiosis.

Biology

1 answer:

uysha [10]3 years ago

6 0

Answer:

Explanation:

he cell division of eukaryotes consists of 2 types of division - mitosis, and meiosis. Both the cell divisions have karyokinesis which follows the cytokinesis. It takes some hours and an indirect type of cell division. The mitotic chromosomes and meiotic chromosomes show different behaviors -

In mitosis, the cell divides one time while in meiosis the cell divides 2 times. DNA replication occurs during interphase in mitosis. In meiosis DNA replication happens in the first cell division and no DNA replication in the second cell division.

There is no synapsis in the mitotic chromosome. In meiosis, synapsis occurs in homologous chromosomes. It has seen in the prophase I of meiosis.

The 2 chromatids of the chromosome do not exchange their segments in mitosis. In meiosis the chromatids of 2 homologous chromosome exchange segments. This results in the crossing over between the 2 homologous chromosomes.

The mitotic chromosome, each chromosome joined by a centromere. The meiotic chromosome forms tetrads from bivalent. The bivalent consists of 2 centromeres where the tetrads are attached.

In mitosis, the chromosomes separate slowly during anaphase. but in meiosis short chromosomes separate early, and long chromosomes take some time to separate.

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