Question

Which of these statements is true about meiosis I?

(a) Crossing over leads to genetic variability

(b) Diplotene is short lived in vertebrates

(c) Diakinesis is followed by cytokinesis

(d) Chiasmata formation occurs during metaphase I

The question was posed to me by my school principal while I was bunking the class.

The origin of the question is Cell Cycle and Division in division Cell Cycle and Cell Division of Biology – Class 11

Answer 1

Correct option is (a) Crossing over leads to genetic variability

For explanation I would say: Diplotene can last for years in some vertebrates, hence it is not always short lived. Diakinesis is followed by metaphase I. Chiasmata is formed during diplotene. Crossing over leads to genetic variation.