BIOLOGY -TEXT
14th Edition
ISBN: 9781260710878
Author: Mader
Publisher: RENT MCG
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Chapter 42, Problem 2TC
A variety of fertility tests are available for women to purchase over the counter—for example, at drugstores. Especially as more women delay their first pregnancy until they are older, these tests are becoming more popular. Many of these tests incorporate antibodies that specifically react with hormones found in a woman’s urine. What specific hormones could be measured in these tests, and how might these tests actually work?
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A variety of fertility tests are available for women to purchase overthe counter—for example, at drugstores. Because more women nowdelay their first pregnancy until they are older, these tests arebecoming more popular. Many of these tests incorporate antibodiesthat specifically react with hormones found in a woman’s urine.What specific hormones could be measured in these tests, and howmight these tests actually work?
Can tube contain plasma be used for hormone test?and why ?
One of the common unfortunate consequences of a vasectomy is that the proximal ends of the ductus deferens rupture and spermatozoa are exposed to the immune system. The person with the testes then produces antibodies against their own sperm. This has consequences for the effectiveness of a vasectomy reversal.
In the situation described above, why are the spermatozoa considered foreign even though they are being produced within the person’s own seminiferous tubules? This immune response is not normal, and so describe how the testes’ structure prevents this immune reaction from occurring.
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- Which of the following rows indicates this pregnancy hormone and the correct location of production? A. Hormone - Human chorionic gonadotropin, Location of production up until 10 weeks - Trophoblast, Location of production after 10 weeks - Placenta B. Hormone - Human chorionic gonadotropin, Location of production up until 10 weeks - Embryo, Location of production after 10 weeks - Fetus C. Hormone - Progesterone, Location of production up until 10 weeks - Ovary, Location of production after 10 weeks - Placenta D. Hormone - Progesterone, Location of production up until 10 weeks - Trophoblast, Location of production after 10 weeks - Placentaarrow_forwardWhen investigating fertility concerns, a common course of action is to rule out sperm cell-related causes of infertility first since obtaining the relevant specimens is generally less invasive. Vitality is another commonly assessed parameter, particularly when motility is deemed poor since it allows physicians to differentiate between live and dead sperm cells. Describe what you would expect to observe (after using the microscope) in the case of a live sperm cell and why? How can you distinguish it from a dead sperm cell in the same sample?arrow_forwardDuring the early stages of family planning, a client asks their nurse how over the counter pregnancy tests work. The most appropriate explanation is that the pregnancy test detects the presence of _______ in the urine. Question 22 options: a) Gonadotropin releasing hormone (GnRH) b) Human chorionic gonadotropin (hCG) c) Progesterone d) Luteinizing hormone (LH)arrow_forward
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