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Answer to Question #90607 in Cell Biology for ahmad

Question #90607
After fertilization the embryo implants in the endometrium and begins secreting a hormone called chorionic gonadotropin (CG), which can be detected in the mother's blood and urine shortly after implantation. CG functions to prevent the corpus luteum from degenerating so that it may continue to produce estrogen and progesterone, which is essential to the maintenance of pregnancy. Using this information, suggest a way we could determine, without invasive methods and without visiting the doctor, whether someone is pregnant or not.

choose one:

Look for a means to determine presence or absence of the corpus luteum.

Develop a test to detect CG in the mother's urine.

Develop a test to detect CG in the blood.

Use ultrasound to determine implantation of the egg.
Expert's answer

After fertilization the embryo implants in the endometrium and begins secreting a hormone called chorionic gonadotropin (CG), after implantation. CG functions to prevent the corpus luteum from degenerating so that it may continue to produce estrogen. Without visiting doctor and without invasive methods pregnancy can be determined by

Develop a test to detect CG in the mother's urine

This hormone comes in the urine after the concentration of this hormone increases in blood which can be determine after 10 days from missing the date of the last month period because this hormone doubles every 2 to 3 days during the first several weeks of pregnancy. This is a noninvasive method and can be done at home by doing urine test by using pregnancy kit test.

Among the other 3 remaining options blood test is invasive method and the rest of the 2 options needs visit to a doctor.

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