Which of the following is not a basic amino acid?
a. Arginine
b. Glutamine
c. Histidine
d. Lysine
Ans: b. Glutamine
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Menstrual flow results in the discharge of ____
a. the follicle b. the corpus luteum c. the lining of the endometrium d. surface cells from the vagina e. blood from vessels on the outer side of the uterus
When blood pressure rises rapidly the body responds by ____
a. increasing heart rate
b. increasing muscle contractions around veins c. decreasing the diameter of arterioles d. vasodilation of arterioles e. increasing the movement of fluid into capillaries
Color deficiency is more common in men than in women because
A) crossing over occurs only in women. B) the gene is located on the Y chromosome. C) men have only one X chromosome. D) women cannot inherit the gene from their fathers. E) men get more copies of the gene than do women.
The conspicuous part of a fern plant is a _____.
a) diploid sporophyte b) haploid gametophyte c) diploid gametophyte d) diploid sorus e) haploid sporophyte