Question

In some women, oviducts are blocked. These women are unable to bear babies because sperms cannot reach the egg for fertilisation. The doctors advise IVF (invitro fertilisation) in such cases. Below are given some steps of the procedure. Select the INCORRECT step

• A. Zygote is kept outside and development takes place in a test tube
• B. Zygote is formed and after a week placed in the uterus
• C. Fusion of egg and sperms is done outside the body
• D. Complete development takes place in the uterus

Answer 1

Answer:

A. Zygote is kept outside and development takes place in a test tube

• In IVF, the fusion of egg and sperm is done outside the body.

• In vitro fertilization (IVF) is the joining of a woman's egg and a man's sperm in a laboratory dish.

• In vitro means outside the body.

• Fertilization means the sperm has attached to and entered the egg.

• The zygote is formed in a test tube and then placed in the uterus for further development.

• Complete development takes place in the uterus is incorrect, because the initial stages of development occur in the test tube.