Kinesins, dyneins, and myosins are all
a. components of microtubules.
b. components of microfilaments.
c. components of intermediate filaments.
d. motor proteins.
e. involved in moving chromosomes.
Answer: d
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Strong selection against the phenotypes for both homozygotes
a. reduces the equilibrium frequencies of the homozygous genotypes b. completely eliminates the homozygous genotypes c. has no effect on the homozygous genotypes
Which of the following describes the labia?
A. The labia majora are hairless folds of skin. B. The labia minora are covered with pubic hair. C. The clitoral hood is formed by the labia majora. D. The Bartholin glands lie inside the labia minora.
In some areas, fluoride is added during the municipal water treatment process in order to help
A) prevent goiter. B) prevent the growth of bacteria. C) prevent the development of mental retardation. D) reduce tooth decay.
The 14C:12C ratio can be used to date fossils that are up to approximately how old?
A) 100 million years B) 7 million years C) 75,000 years D) 7,500 years