A species has 6 chromosome pairs in each diploid cell. How many genetically unique gametes could be produced from sexual reproduction in this species, accounting only for independent assortment?
A. 64
B. 8
C. 36
D. 9
E. 16
A. 64
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The diameter of a blood vessel will be reduced by the contraction of ________
a. cardiac muscle b. smooth and cardiac muscles c. skeletal and cardiac muscles d. smooth muscle e. skeletal muscle
Primary protein structure is dependent on
a. hydrophobic interactions. b. hydrogen bonds between two amino acids. c. covalent linkages between carbons and nitrogens of adjacent amino acids. d. covalent linkages between carbons and oxygens of adjacent amino acids. e. all of these
Moistening and lubrication of food occurs in
the human a. mouth. b. esophagus. c. stomach. d. duodenum. e. jejunum
In pea plants, Y confers yellow peas, and y confers green peas. If you cross two heterozygous Yy pea plants, what fraction of the offspring will be yellow? Select one:
a. 0% b. 100% c. 25% d. 50% e. 75%