Question

IVF stands for
A. In vitro fertilization
B. In vivo fertilization
C. In voice fertilization
D. In vocal fertilization

Answer 1

Hint: The process of fusion of male and female gamete is known as fertilization. Fertilization takes place in the fallopian tube in the female body.

Complete solution:
Natural fertilization taking place in the human female body is known as in vivo fertilization. The specific site known as ampulla in the fallopian tube is the site where fertilization takes place. Female ovary releases the ovum/egg which reaches the fallopian tube. Similarly, male release sperm into the female body through insemination. Motile sperm also reaches the fallopian tube for fertilization. If both egg and sperm reach at the same time, then the fertilization takes place.
When the fertilization takes place outside the female body, it is known as in vitro fertilization. IVF stands for in vitro fertilization. It involves a complex series of steps to treat infertility. IVF is an assisted reproductive technology (ART) where eggs are extracted from the female body and sperm from male body and are fused in the laboratory. After fusion, embryo form is inserted in the female uterus for further development.
IVF is advisable for-
1. Fallopian tube damage or any blockage in it.
2. If the women are not ovulating at the right time.
3. Impaired sperm motility or function.
4. No known cause of fertility.
5. Tube sterilization or removal of tubes is another reason for IVF.
6. Genetic disorders can also be one of the reasons for IVF.
So, the correct option is A.

Note: There are different types ART, namely, gamete intra fallopian transfer (GIFT), zygote intra fallopian transfer (ZIFT), tubal embryo transfer (TET) etc. All these methods are used to treat infertility.