Question

Arrange the phases of prophase I in order.

(a) Leptotene → Zygotene → Pachytene → Diplotene

(b) Zygotene → Leptotene → Pachytene → Diplotene

(c) Leptotene → Pachytene → Zygotene → Diplotene

(d) Zygotene → Leptotene → Diplotene → Pachytene

I had been asked this question in class test.

Question is taken from Cell Cycle and Division topic in chapter Cell Cycle and Cell Division of Biology – Class 11

Answer 1

Correct option is (a) Leptotene → Zygotene → Pachytene → Diplotene

The best I can explain: Prophase 1 is the first stage of meiosis. It is the first step of meiosis 1. It is divided into four sub-phases-namely, Leptotene, Zygotene, Pachytene and Diplotene. Diplotene is followed by diakinesis.