Question

In human female, the fertilised egg gets implantat in uterus

• A. After two months of fertilisation
• B. After one month of fertilisation
• C. After 3${}^{rd}$ week of fertilisation
• D. After about 7 days of fertilisation

Answer 1

Answer: (D)

After about 7 days of fertilisation

Fertilization is the process of fusion of a sperm with an ovum. If fertilization does not happen within 12-24 hours after ovulation, the egg dies off, if it undergoes fertilization, the zygote is formed which get attached to the uterus. Implantation is the attachment of the fertilized egg to the uterus, it happens on average about 7${}^{th}$ day after fertilization. This is required for the fetus to continue to grow.

So, the correct answer is option D.