Test tube baby means a baby born when :a)It is developed in a test tub...
By in vitro fertilization, the ovum is fertilized with sperm outside the body of a woman, providing the ovum with the same environmental conditions as it would have got inside the uterus. The zygote is grown inside a culture and when embryo is formed, it is then implanted into uterus where it develops into foetus and then into a child. This is called "test tube baby". Methodology involves the following steps : - Removal of unfertilised ovum from reproductive tract of a female. - Ovum is kept under aseptic conditions. - Fusion of sperm and ovum in a culture medium, outside the female body to form the zygote. - Zygote is stimulated to develop in vitro upto 32-celled stage. - Developing embryo is implanted on the endometrium of the uterus at 32-celled stage. So the pregnancy in the woman starts and further the development of the child continues in the womb till it is bom.
Test tube baby means a baby born when :a)It is developed in a test tub...
Test tube baby means a baby born when:
There seems to be some confusion regarding the term "test tube baby." Let's explore the correct explanation for this term.
Explanation:
The correct answer is option 'C' - a test tube baby is a baby that is developed through the process of in vitro fertilization (IVF), where the ovum is fertilized externally and then implanted in the uterus.
Here is a detailed explanation of each option:
a) It is developed in a test tube:
This option is incorrect. A test tube is not the actual site of development for a baby. Although the term "test tube baby" may be used colloquially, it does not mean that the baby is developed in a test tube.
b) It develops from a non-fertilized egg:
This option is incorrect. In order for a baby to be conceived, fertilization between a sperm and an egg must occur. Therefore, a non-fertilized egg cannot develop into a baby.
c) The ovum is fertilized externally and thereafter implanted in the uterus:
This option is correct. In the process of IVF, the woman's eggs are retrieved from her ovaries and then fertilized with sperm in a laboratory dish. Once fertilization occurs, the resulting embryos are allowed to develop for a few days. Afterward, one or more embryos are selected and transferred to the woman's uterus for implantation and further development.
d) It is developed by tissue culture method:
This option is incorrect. Tissue culture is a laboratory technique used to grow cells or tissues in a controlled environment. While tissue culture methods may be used in certain aspects of IVF, the overall process of developing a test tube baby involves more than just tissue culture.
In conclusion, a test tube baby is developed through the process of IVF, where the ovum is fertilized externally and then implanted in the uterus. This option is the correct answer.