A fertility specialist brings an infertile couple's eggs and sperm together in a test tube and when fertilization occurs, he transplants the resulting embryo back into the female uterus. What is the term for this type of fertilization?
A. in vitro fertilization
B. homologous artificial insemination
C. heterologous artificial insemination
D. surrogacy
E. adoption
A. in vitro fertilization
In in vitro fertilization, eggs and sperm are brought together outside the body in a test tube or petri dish. When fertilization takes place, the resulting embryo can then be frozen in liquid nitrogen for future use or implanted in the female uterus for pregnancy to occur. If the husband's sperm cells are used to fertilize the wife's eggs, the process is called homologous artificial insemination. If the husband's sperm cells are not viable, a donor's sperm may be used to fertilize the wife's eggs. This is called heterologous artificial insemination. A surrogate mother is a woman who agrees to carry a child to term for a couple, often for a fee.
You might also like to view...
Elixirs are best used for medications that are dissolvable in __________
Fill in the blank(s) with correct word
What information should be noted about unusual odors during a fire investigation?
A. If the odor was not present during the fire B. If the odor has an aroma of something similar to smoke C. If the odor can be detected after coming out of the smoke D. If the odor is more than 20 feet (6.1 m) outside of the structure
Which of the following is a pigment that gives a yellowish color to the skin?
a. Melanin b. Carotene c. Hemoglobin d. Corium
From the following list, select the items which are associated with drug names
a. brand b. generic c. trade d. chemical