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Medical
6 months, 2 weeks ago

Please,please help me The stage during which separation of paired homologous chromosomes begins is

The stage during which separation of paired homologous chromosomes begins is

  • Option 1)

    Diakinesis

  • Option 2)

    Diplotene

  • Option 3)

    Pachytene

  • Option 4)

    Zygotene

 
Answers (1)
405 Views
D Divya Saini
Answered 6 months, 2 weeks ago

As we learnt in

Diplotene -

The fourth stage of prophase I, marked by dissolution of synaptonemal complex and the tendency of the recombined homologous chromosomes of the bivalents to separate. The X-shaped structures are called chiasmata.

 

- wherein

Diplotene

 

 

Synaptonemal complex disintegrates. Terminalisation begins at diplotene stage i.e. chiasmata start to shift towards end. 


Option 1)

Diakinesis

This is incorrect.

Option 2)

Diplotene

This is correct.

Option 3)

Pachytene

This is incorrect.

Option 4)

Zygotene

This is incorrect.

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