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Crossing over takes place in...

Crossing over takes place in

A

Pachytene

B

Diakinesis

C

Zygotene

D

Leptotene

Text Solution

Verified by Experts

The correct Answer is:
A
Pachytene
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Crossing over takes place on:-

Assertion (A): Recombination and crossing over take place in meiosis I. Reason (R ): In the process of meiosis two stages of DNA replication take place.

Crossing over takes place during :

Crossing over takes place between :

Assertion (A): Karyokinesis is the significant stage in cell division. Reason (R ): Crossing over takes place during karyokinesis.

Assertion (A): Crossing over takes place between two homologous chromosomes. Reason (R ): Crossing over is the exchange of chromosomal fragments between homologous chromosomes.

Assertion :- During pachytene crossing over takes place which is dependent on recombinase Reason:- Recombinase is the group of enzymes involved in crossing over and crossing over is an enzyme dependent process.

Assertion : Crossing over take place during pachytene stage. Reason : It is a process of interchange of chromatid material between non sister chromatid of homologous chromosomes.

[A] : Crossing over takes place during pachytene stage . [R] : It is a process of inter change of chromatin material between one sister chromatid of each homologous chromosome .