Changes that occur at the genetic level in populations are classified as ________
A) gradualism B) microevolution C) macroevolution D) chemical evolution
Answer: B
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About __________ million individuals, the majority
of them under age twenty-five, become infected with an STD in the United States annually. a. 1 b. 3 c. 5 d. 10 e. 15
The scientific theories for the origin of life suggest that life arose
A. by endosymbiosis. B. as a result of God's creation. C. by deliberate design. D. from natural processes and that these processes can be observed and evaluated by scientific experimentation.
What is the relationship between recombination frequency and the actual physical distance on a chromosome?
A. As physical distance increases, the recombination frequency increases in a linear fashion. B. As physical distance increases, the recombination frequency first increases in a linear fashion, but gradually levels off to a frequency of 0.5. C. As physical distance increases, the recombination frequency decreases in a linear fashion. D. As physical distance increases, the recombination frequency first increases, but then decreases.
For human races to be considered valid biological groupings, the genetic diversity within the group would have to be ________ the genetic diversity between groups.
A. higher than B. equal to C. lower than