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Deepika Mishra

Class 11th
Biology
2 years ago

Name the stage of cell cycle at which one of the following events occur: (i) Chromosomes are moved to spindle equator. (ii) Centromere splits and chromatids separate. (iii) Pairing between homologous chromosomes takes place. (iv) Crossing over between homologous chromosomes takes place.

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Abhishek Mishra

2 years ago

Explanation i) Metaphase: It is one of the stages in cell cycle in which chromosomes carrying genetic material, align in equator of the cells. In this stage in eukaryotic cell cycle in which chromosomes are at their second-most condensed and coiled stage. ii) Anaphase: in this phase newly copied chromosomes are moved to opposite poles of the cells. This stage comes after metaphase. iii) Zygotene: It is second stage of prophase of meiosis. During this stage homologous chromosomes begin to pair together. iv) Pachytene: this is a stage where crossing over takes place between non-sister chromatids of the homologous chromosomes. Final Answer i) Metaphase ii) Anaphase iii) Zygotene iv) Pachytene

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