Biology jamb 1979

Identical twins are produced under one of the following conditions

a

Two oval fertilized at the same time by two sperm

b

one ovum ferilized divides to give two embryos

c

one ovum fertilized, twins formed shortly before birth

d

Two ova fertilized by one sperm

e

one ovum fertilized by two sperm

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Explanation

Correct Option
b

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Discussions (10)

Morenikejimi
12 years ago

The ans is b cos only egg is released from the ovary which when fertilized can can split to form two embryos

kelvo3
11 years ago

the answer is

fortunecoza
5 years ago

why do some ovum divide and some do not and what causes the division

It's B, but option A is for fratanal twins

Beauty20244
10 months ago

B is the correct answer 🥰

Topteejay01
8 years ago

The answer is B. What makes them identical is d division of the fertilized ovum to form 2 embryos

ImmaVynde
1 year ago

correct

shiningstar01
10 years ago

B is the correct answer

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