Question

Which of these following statements is false about synapsis?

(a) Pairs of homologous chromosomes are formed

(b) It occurs during zygotene

(c) It results in tetravalent formation

(d) It is accompanied by synaptonemal complex formation

I got this question in a national level competition.

The question is from Cell Cycle and Division in portion Cell Cycle and Cell Division of Biology – Class 11

Answer 1

Correct choice is (c) It results in tetravalent formation

The explanation is: Synapsis is the process of chromosomal association that takes place in the zygotene stage of prophase I. It results in pairing of homologous chromosomes and involves synaptonemal complex formation. It results in bivalent formation.