Reproduction in animals ..
Solution
Such questions are made for enhancing self-creative skills and should be tried
answering on your own. However, here are a few points that will help you in framing
your answer:
. Point 1 Twinning occurs when either two eggs mature in the ovaries of females ( one on each side). Such twins are called fraternal twins or non-identical twins. Another way in which twins may develop is during the cell division occuring in the embryo which often splits into two groups leading to development of identical twins.
. Point 2 - identical twins are of the same sex because there is only a single egg that gets fertilised by a single sperm, it is the embryo which undergoes divisions thereby leading to the twins having the same sex.
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