Question

a female ovary produces one ovum at a time every Month .this implies that not more than one zygote formed at a time. how are twins produced then ?also find out why some twins are identical and some not

Answer 1

twins are produced when one fertilised egg splits or divides in two parts.
when one zygote splits into two parts its forms identical twins.
when two eggs are fertilised by two sperms it developed non identical twins 
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Answer 2

Answer:

MARK AS BRAINLIEST

Explanation:

twins are produced when one fertilized egg splits or divides into two parts.

when one zygote splits into two parts it forms identical twins.

when two eggs are fertilized by two sperms it developed non-identical twins