Oil pollution is a serious problem throughout the world. Petroleum kills organisms by:
A) disrupting biological membranes.
B) coating surfaces of organisms.
C) both of the above.
Ans: C) both of the above.
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A. dsRNA B. dsDNA C. ssDNA D. ssRNA
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Enhancers can be identified by.
a. cloning a region of DNA with the putative enhancer in a reporter plasmid and demonstrating an increase in gene expression when the construct is introduced into a eukaryotic cell.
b. sequence comparison with promoter sequences that are already known.
c. introducing two separate pieces of DNA into a eukaryotic cell. One is a fragment of DNA with the putative enhancer and the other is a plasmid that contains a reporter gene.
d. cloning the putative enhancer into a plasmid and measuring the level of reporter gene expression in a prokaryotic cell.