Multiple choice

Which of the following events will produce identical twins?

  1. Fertilization of two ova at the same time

  2. Fertilization of two ova by same sperm

  3. Division of fertilized egg into two

  4. Division of sperm into two before fertilization

  5. Fertilization of two ova by two sperms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Identical twins are born when a fertilized egg divides into two so that they have similar genetic material. 

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