An individual's ____ determines its observable ____
a. phenotype; genotype
b. genotype; phenotype
c. gene location; allele
d. heterozygote; homozygote
e. homozygote; heterozygote
ANSWER: b
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The minimum concentration of antibody produced by
the primary immune response occurs between weeks a. 2 and 3. b. 3 and 4. c. 4 and 5. d. 6 and 7. e. 9 and 10.
Four of the five answers listed below are true of a neuron at resting potential. Select the exception
a. The interior of a neuron is positive. b. The interior of a neuron has a negative charge. c. There are more sodium ions outside a neuron. d. There are more potassium ions inside a neuron. e. The membrane of a neuron is polarized.
Which type of cellular proteins internally support the axopods of radiolarians?
a. microfilaments b. microtubules c. actin filaments d. lysosomal proteins
If free to move, a molecule will always move from an area of higher concentration to an area of lower concentration.
a. true b. false