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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
A pregnancy test detects _________ in the urine.
- a. lysozyme
- b. prolactin
- c. oxytocin
- d. human chorionic gonadotropin
Concept introduction: Pregnancy tests are designed to test if the human female is pregnant or not. The test is based on the hormone, human chorionic gonadotropin (which is released only at the time of pregnancy).
Reasons for the correct statement:
Once the blastocyst is implanted in the uterus, chorion is formed from the outermost layer of the blastocyst. The chorion produces the human chorionic gonadotropin that helps to sustain the corpus luteum. Corpus luteum produces the pregnancy hormone, progesterone. The urine of the pregnant female or a female who shows the symptoms of being pregnant is tested for human chorionic gonadotropin as it is the only hormone released during pregnancy.
Option d. is given as “human chorionic gonadotropin”
As human chorionic gonadotropin is detected in the urine during pregnancy test, option d. is correct.
Reasons for the incorrect statements:
Option a. is given as “lysozyme”...
Chapter 42 Solutions
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