Although the specific mechanism of RNA interference has not been fully defined, it involves
A. double stranded RNA interference with mRNA.
B. double stranded RNA interference with DNA.
C. double stranded DNA interference with mRNA.
D. double stranded mRNA interference with DNA.
A. double stranded RNA interference with mRNA.
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Which of the following statements explains why restriction enzymes are not useful for genome-wide studies of genetic variation?
A. There is simply too much DNA that has to be cut in order to get any information. B. The differences in restriction sites are evened out when looking at the entire genome. C. Using restriction enzymes will only tell us differences in sequence variation in restriction sites. D. Restriction enzymes only recognize sequences found in genes. E. None of the answer options is correct.
Some of the characteristics used to describe biomes include:
A. precipitation and number of grass species. B. precipitation and average temperature. C. precipitation and number of trophic levels in the communities. D. precipitation and species richness.
Which of the following occurs when ribosome encounters either UAA or UAG?
a. Ribosomal subunits leave the mRNA. b. Ribosomal subunits bind to the mRNA. c. The mRNA template initiates translation. d. Amino acids form on the mRNA template.
Double-stranded break repair mechanisms
A) are error prone. B) may join nonhomologous ends of DNA together. C) are part of the SOS repair system. D) may use homologous DNA to repair the damage. E) are error prone and may join nonhomologous ends of DNA together or use homologous DNA to repair the damage.