A gene from a bacterium can be inserted into a corn plant, and the corn plant will make the same protein as the bacterium. This kind of gene transfer works because:
A) the bacterium and the corn plant are very closely related from an evolutionary perspective.
B) the bacterium and the corn plant use the same process and genetic code for synthesizing proteins.
C) the bacterium and the corn plant are able to interbreed and produce fertile offspring.
D) the bacterium infects the corn plant's cells and uses its cellular machinery to produce the protein.
E) every organism's DNA is identical.
B) the bacterium and the corn plant use the same process and genetic code for synthesizing proteins.
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You are studying a protein in Salmonella typhimurium that you believe is a toxin. Whenever you attempt to purify the protein from lysed cell cultures, you get two forms of the protein
One form is smaller than the other and is missing 15 amino acids from the N-terminus compared to the larger form. This leads you to hypothesize that A) there are two termination sites in the mRNA. B) the protein requires chaperonins to fold properly. C) the protein is secreted and folds outside of the cell. D) you need to re-do the experiment because there should only be one form.
When bacteria flourish and grow in the blood stream, the condition is termed ________.
A. viremia B. fungemia C. sepsis D. bactocarditis
A variation of a gene is called a(n) _______
A. species B. morph C. genome D. allele E. proteome
In eukaryotic cells, how can a single gene encode for more than one protein?
A. by using different codons B. by transcribing multiple copies of mRNA C. by removing different combinations of introns D. by using transgenes E. by mutating their genes