In mammalian females, which of the following is a structure essential for reproduction?
a. the urethra
b. the anus
c. the uterus
d. the stomach
Ans: c. the uterus
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The collarbone is the
a. hyoid. b. patella. c. scapula. d. clavicle. e. phalanx.
Which of the following is NOT true concerning umbilical arteries?
a. There are two of them. b. They carry oxygen-poor blood. c. They take blood from the fetus to the placenta. d. They are housed in the umbilical cord. e. They carry blood that is rich in nutrients.
Glucocorticoids promote ____
a. an elevation in blood glucose b. increased muscle mass c. decreased fat metabolism d. decreased liver uptake of amino acids e. sodium retention
A sizable population was analyzed for SNPs in a certain DNA region. Four possible variants were found, with the following frequencies: SNP 1: GGTCTAGGA; frequency = 0.91 SNP 2: GGTGTAGGA; frequency = 0.03 SNP 3: GGTATAGGA; frequency = 0
03 SNP 4: GGTTTAGGA; frequency = 0.03 If the population is in Hardy-Weinberg equilibrium, what is the total frequency of heterozygotes at this SNP locus? A) 0.828 B) 0.009 C) 0.170 D) 0.055 E) 0.0018