The frequency of mutations does not necessarily decrease or increase over time
a. true
b. false
Ans: a. true
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When a eukaryotic gene is cloned into a bacterium, the advantage of a complementary DNA (cDNA) gene being used instead of fragments of genomic DNA is that
A. the introns have been removed from the cDNA gene but not from the genomic fragment. B. the promoter and terminator are found in the cDNA gene but not in the genomic fragment. C. the cDNA is made with the nucleotides found in the prokaryote but not in the eukaryote. D. There is no advantage to using a cDNA gene rather than a genomic fragment.
Which of the following diseases is not caused by a dimorphic fungus?
A) coccidioidomycosis B) cryptococcosis C) histoplasmosis D) sporotrichosis
Imagine you are tracing the regulatory journey of a single protein being expressed in a single cell
There are multiple stages of regulation, and many of them can only occur in a particular order. Write the letter of the first regulatory step next to 1 and the letter of the last stage of regulation next to 8.
A. Regulation of transcription initiation B. Protein breakdown C. Pre-mRNA processing D. Protein modification E. Chromatin remodeling F. RNA interference G. Initiation of translation H. mRNA breakdown 1. 2. 3. 361 4. 5. 6. 7. 8.
Divergent evolution occurs when:
a. closely related populations or species diverge from one another because natural selection op-erates differently on each of them. b. two or more populations or species become more similar to each other because they are ex-posed to similar selective conditions. c. Both of the above. d. Neither of the above.