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What is the pair of homologous chromosomes that line together during the meiosis I called?

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in Biology – Class 12 by (271k points)
What is the pair of homologous chromosomes that line together during the meiosis I called?

(a) Chromatid

(b) Bivalent

(c) Trivalent

(d) Divalent

I have been asked this question in examination.

Query is from Chromosomal Theory of Inheritance-3 in chapter Principles of Inheritance and Variation of Biology – Class 12

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Right option is (b) Bivalent

For explanation I would say: The pair of chromosomes that line up during meiosis has two copies of each homologous chromosome. Hence it is called a bivalent.

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