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Question

Match the substages of prophase I of first meiotic division listed in column I with the important events pertaining to respective stages given under column II.

Column I Substages of prophase I Column II Important eventsAZygotenepChromomeresBPachyteneqBivalents migrate to peripheryCDiplotenerTerminalization of chiasmata beginsDDiakinesissCrossing over tSynapsis


A

A = t, B = s, C = r, D = q

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B

A = p, B = s, C = r, D = q

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C

A = s, B = p, C = r, D = q

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D

A = s, B = t, C = r, D = q

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Solution

The correct option is A

A = t, B = s, C = r, D = q


Zygotene - synapsis
Pachytene - crossing over
Diplotene - Terminalization of chiasmata begin
Diakinesis - Bivalents migrate to periphery

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