For a biologist studying a small fish population in the lab, which Hardy-Weinberg condition is easiest to meet?
A) no selection
B) no genetic drift
C) no gene flow
D) no mutation
C
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Disease ________ is measured by the total number of new reported disease cases within a population over a period of time
A) incidence B) frequency C) morbidity D) prevalence
Evolution at the genomic level involves changes in
A. chromosome structure and number. B. sequences of amino acids in proteins. C. sequences of nucleotides in RNA molecules. D. incorporation of new organelles such as the mitochondrion. E. DNA and histone relationships.
It has been difficult to generate drugs to treat AIDS for which reason?
HIV does not cause AIDS. HIV does not use any enzymes that can be targeted by drugs. HIV mutates rapidly. The only way to kill a virus is with a vaccine, not with drugs. People with HIV infections die rapidly, before the drugs have a chance to cure them.
Subtle differences in DNA sequences that vary from person to person are called ________
A) genomics B) chromosomes C) DNA microarrays D) pharmacogenomics E) single-nucleotide polymorphisms