Fraternal twins are produced when
- A$A$ fertilized egg divides into two
- BAn egg is fertilized by two sperms
- C$A$ divided egg has two sets of chromosomes
- DTwo eggs are fertilized simultaneously
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| $(b)$ Gestation | $(q)$ Release of egg from Graafian follicle |
| $(c)$ Ovulation | $(r)$ Delivery of Foetus from uterus |
| $(d)$ Implantation | $(s)$ Duration between pregnancy and birth |
| $(t)$ Formation of zygote by fusion of egg and sperm |
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