Which reactant of aerobic respiration is oxidized?
a. water
b. oxygen
c. glucose
d. energy
e. carbon dioxide
c
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Not only do some microorganisms tolerate extremely hot temperatures, some actually require high temperatures for optimal growth
Indicate whether the statement is true or false.
DNA is wrapped around histones, which contain many copies of the positive amino acids lysine and arginine. These positive amino acids neutralize the negative charge of the ______________ of the DNA wrapped around the histone
A. ribose sugar B. hydroxyl group C. nitrogenous base D. phosphate group E. All of the answer options are correct.
Animals that see only black and white have predominantly what type of photoreceptors?
a. rod cells b. cone cells c. dendrites d. photo discs
The wild-type coat color, agouti (AA) is dominant to solid-colored fur (aa). However, a separate gene C, when present as the recessive homozygote (cc), negates any expression of pigment from the A gene and results in an albino mouse. Therefore, the genotypes AAcc, Aacc, and aacc all produce the same albino phenotype. A cross between heterozygotes for both genes (AaCc x AaCc) would generate offspring with a phenotypic ratio of 9 agouti:3 black:4 albino. Which type of gene interaction is this?
a. Complementary gene interaction. b. Duplicate gene interaction. c. Dominant gene interaction. d. Recessive epistasis. e. Dominant epistasis.