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Chromosomal Basis of Inheritance. — BIO BOTANY STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12BIO BOTANYChromosomal Basis of Inheritance.2 Marks
Question
What are bivalents? When does this condition is noticed in a cell?
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Answer

During zygotene stage of prophase I of meiosis I, homologous chromosomes are aligned side by side resulting in a pair of homologous chromosomes called bivalents.

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