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Cytokinesis

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Question

The movement of chromosomes towards opposite poles during Anaphase – I of meiosis is called

A

Non – disjunction

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B

Disjunction

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C

Metakinesis

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D

Cytokinesis

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Solution

The correct option is B
Disjunction

The movement of chromosomes towards opposite poles during Anaphase – I of meiosis is called disjunction.

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Q. Assertion :Nondisjunction is the failure of paired chromosomes to segregate during the Anaphase of meiotic division of gametogenesis. Reason: Non-disjunction results in production of abnormal gametes.

Q. Assertion :Statement : Non-disjunction results in the production of abnormal gametes.
Reason: Reason : Non-disjunction is the failure of paired chromosomes to segregate during the metaphase of meiotic divisions of gametogenesis.

Q. The non-disjunction, in meiosis may result is extra copy of a chromosome in a sperm cell. During which phase the above phenomenon may occur?

Q. Non - disjunction in meiosis results in:

Q. The process of human spermatogenesis produces four sperm cells. Of the four cells produced, two of them have 20 chromosomes, and two of them have 26 chromosomes. The non-disjunction that caused the cells to have an unbalanced chromosome number probably occurred during which stage of meiosis?

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