Which of the following statements about genomic libraries and cDNA libraries is TRUE?
A. A cDNA library is derived from chromosomal DNA.
B. A genomic library is derived from mRNA.
C. A genomic library is made using reverse transcriptase.
D. A genomic library is derived from mRNA and is made using reverse transcriptase.
E. A cDNA library is derived from mRNA and is made using reverse transcriptase.
E. A cDNA library is derived from mRNA and is made using reverse transcriptase.
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Check all that apply: Members of the same biological species can
_____ have several isolated gene pools. _____ differ from other species in one or more characteristics. _____ generate fertile offspring with the members of a different species. _____ interbreed freely with each other.
In the dark, the Na+ channels in the outer segments of rod cells are
A. open. B. closed. C. primarily affected by inhibitory neurotransmitter input. D. important in making the cell hyperpolarized in this resting state.
PPD (purified protein derivative) or tuberculin is injected intradermally to test whether an individual is infected with tuberculosis. After 48-72 hours post-injection, the test is read by measuring:
A.The intensity of the red coloration of the injection site B. The number of blebs or wheals at the injection site C. The diameter of the bleb or wheal D. The distance the bleb or wheal forms from the injection site
Which scientist described inclusive fitness as the effect an individual has on propagating its alleles through its own reproduction and through kin selection?
A. Darwin B. Hamilton C. Mendel D. Tinbergen E. Wallace