Question

chiasmata represent the sites of:
a-synapsis
b-Disjunction
c-crossing over
d-terminalization

Answer 1

crossing over is the answer.....
Crossing over takes place during meiosis 1 at pachytene in which the homologus chromosomes exchange the genetic material so in the next stage of prophase 1 ie. diplotene the synaptonimal complex starts dissoluting and the two homologus chromosomes separates except at the site of crossing over which gives rise to X shaped structure called chiasmata.....
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