Q.

Identify the correct sequence of events during prophase I of meiosis ?

         (a)     Synapsis of homologous chromosomes

         (b)    Terminalisation of chiasmata

         (c)     Dissolution of synaptonemal complex

         (d)    Exchange of genetic material

         (e)     Compaction in chromosomes

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a

a, e, c, d, b

b

e, b, a, c, d

c

e, a, c, d, b

d

e, a, d, c, b          

answer is A.

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Detailed Solution

Synapsis of homologous chromosomes occur in zygotene, terminalisation of chiasmata occure in diakenesis, dissolution of synaptonemal complex occur in deplotene , exchange of genetic material occur in pachytene and compaction in chromosomes occur in leptotene.

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