Once a gene has been cloned, it can be used for
A. disease diagnosis.
B. detecting heterozygotes in the population.
C. making biosynthetic products for commercial use.
D. all of these.
E. none of these.
D
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In female mammals, germ cells
A. are not produced until puberty. B. are arrested in meiosis I until puberty. C. develop into fully mature gametes before birth. D. are arrested in meiosis II until puberty.E. are arrested in mitosis until puberty.
Differential media result in which of the following observable characteristics?
A. Gas bubbles B. Differently colored colonies C. Different media color after incubation D. Chemical precipitates E. All of the choices are correct.
________ consist of a core of segments of DNA or RNA surrounded by a protein coat.
A. Viruses B. Protists C. Archaea D. Bacteria
The reverse of a dehydration synthesis reaction is a(n) ________ reaction.
A. anabolic B. exchange C. hydrolytic D. endothermic E. metabolic