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BIOLOGY

JAMB 2004 - Question 44

Biology 2004 JAMB Past Questions - Question 44: Identical twins inherit their genes from

Choose the most appropriate option for the gap .

Identical twins inherit their genes from

A: different eggs and sperms

B: the same egg and sperm

C: two eggs and a sperm

D: one egg and two sperms

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Correct Answer

Explanation

Bidentical twins are children that come from the fertilization of an egg by a sperm the resulting zygote divides into twoidentical cells. The cells ceparate from one another. Each cell undergoesrepeated mitotic division to form an embryo. The two embryos share the sameplacenta. They are usually of the same sex and have the same inherited traits.Different eggs and sperms produce non-identical twins. Options C and D arenot possible.