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Question

A bivalent of Meiosis I consist of


A

Four chromatids and two centromeres

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B

Two chromatids and one centromere

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C

Two chromatids and two centromere

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D

Four chromatids and four centromere

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Solution

The correct option is A

Four chromatids and two centromeres


The correct option is A.

Explanation of the correct option:

  1. Bivalent is formed during zygotene.
  2. Each bivalent is made up of four chromatids, two of each chromosome.
  3. The centromere is the part of a chromosome that attaches to the spindle during cell division.
  4. Each bivalent, thus, contains two centromeres.

Final answer: A bivalent of Meiosis I consists of four chromatids and two centromeres.


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