Question

Mitosis and meiosis always differ in regard to the presence of a. chromatids. b. homologs. c. bivalents. d. centromeres. e. spindles.

Answer 1

Answer:

c. bivalents.

Explanation:

In Meiosis a bivalents are formed during the first stage of meiosis which is the prophase. The bivalent consist of a paired chromosome and four chromatids i.e two chromosomes in a tetrad. one chromosome comes from each parent.

In mitosis, a bivalent is not formed. There is the presence of chromatids, homologs, centromeres and spindles during mitosis and meiosis.

Answer 2

Mitosis and meiosis always differ in regard to the presence of bivalents (Option c).

• A chromosome is a specific linear chain of genetic material (DNA), which is transmitted as a unit during cell division.

• A bivalent refer to two homo-logous chromosomes that exchange genetic material during recombination.

• A bivalent occurs only in meiosis where the interchange of genetic material between homo-logous chromosomes occurs.

In conclusion, mitosis and meiosis always differ in regard to the presence of bivalents (Option c).

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