Question

The chiasmata are fully formed during the__ stage of prophase I.

a) Leptonema

b) Zygonema

c) Pachynema

d) Diplonema

e) None of the above

Answer 1

Answer - Diplonema

Major events in Prophase I

Leptotene - chromosome start condensation

Zygotene - Homologous chromosme pairing

Pachytene - crossing over

Diplotene - Chiasma formation

Diakinesis - disintegration of nuclear membrane