The ________ is separated from the rest of the cell by a ________ nuclear membrane.

A. nucleus; double layer
B. nucleus; single layer
C. nucleoid; double layer


Ans: A. nucleus; double layer

Biology & Microbiology

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Similar to single-gene traits, traits determined by multiple genes also show the expected 3:1 ratio of phenotypes in the progeny between two heterozygotes

A. true B. false

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During translation, which triplets signal chain termination?

What will be an ideal response?

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In a Hardy-Weinberg population with two alleles, A and a, that are in equilibrium, the frequency of allele a is 0.2. What is the percentage of the population that is heterozygous for this allele?

a. 0.02 b. 2.0 c. 4.0 d. 16.0 e. 32.0

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Which of these statements accurately describes a similarity between sharks and ray-finned fishes?

A) They are equally able to exchange gases with the environment while stationary. B) They are highly maneuverable due to their flexibility. C) They have a lateral line that is sensitive to vibrations. D) A swim bladder helps control buoyancy.

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