Fraternal twins in man are produced when
Fraternal twins in man are produced when
- A
Two sperms fertilize an ovum and the first two blastomeres separate from each other
- B
One sperm fertilizes an ovum and first two blastomeres separate from each other
- C
Egg develops parthenogenetically and first two blastomeres separate from each other
- D
Two ova are fertilized simultaneously
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If $X$ chromosome contained sperm entered in $X$ chromosome contained ovum than ...... is produced
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Normally the number of chromosomes in the nuclei of gametes that fuse at fertilization are
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