NEET Biology question

BiologyCell Cycle and Cell DivisionNEET

Four different steps that occur during meiosis are given in the following list: (i) Complete separation of chromatids (ii) Pairing of homologous chromosomes (iii) Lining up of paired chromosomes on the equator (iv) Crossing over between chromatids

Select the correct sequential arrangement of the steps.

Answer: (C)

Solution

Homologous chromosomes first pair up (ii, at zygotene), then undergo crossing over between non-sister chromatids (iv, at pachytene), after which the paired/bivalent

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Question ID VK-127428