Which functional group is polar and a key component of alcohols?
a. carbonyl
b. hydroxyl
c. phosphate
d. amino
e. carboxyl
ANSWER: b
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A. in a gradient of a chemoattractant B. tumbling C. in a gradient of a chemorepellant D. rotating flagella clockwise
One of the laws Mendel established is the law of independent assortment. Assume that a parent has the genotype Aabb and that this parent produces gametes. Which of the following illustrates the letter or letters that could be present in one of these gametes according to the law of independent assortment?
A) AB B) ab C) A D) Aa
Diffusion is a process by which a substance:
A) goes down its concentration gradient. B) is at equilibrium. C) goes from lesser to greater concentration. D) goes up its concentration gradient.