Question

Monozygotic twins are produced when

• A. Two ova are fertilized simultaneously
• B. Incomplete cleavage of zygote
• C. First cleavage of zygote is followed by separation into two
• D. There is no cleavage

Answer 1

The correct option is C First cleavage of zygote is followed by separation into two

Monozygotic twins are also called as identical twins formed by the one zygote that splits into two embryos.

So the correct answer is 'The first cleavage of the zygote is followed by separation into two'