Human Chorionic Gonadotropin (HCG), a Hormone Released by a Conceptus

question 127

Multiple Choice

Human chorionic gonadotropin (hCG) , a hormone released by a conceptus and the placenta, is chemically and functionally similar to luteinizing hormone (LH) . As such, hCG supports early pregnancy by

• A) stimulating the corpus luteum to maintain its secretion of estrogen and progesterone.
• B) stimulating the hypothalamus to secrete GnRH.
• C) inhibiting the secretion of androgens.
• D) causing the corpus luteum to regress, thus preventing subsequent ovulation.
• E) acting upon LH receptors in the endometrium to prevent it from being shed during menstruation.

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Definitions:

Pearson r

A measure of the linear correlation between two variables, ranging from -1 to 1, where 1 means a perfect positive linear relationship, -1 a perfect negative linear relationship, and 0 no linear relationship.

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Scatterplots

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Regression Equation

An equation that represents the relation between a dependent variable and one or more independent variables, used to predict the dependent variable.