A mitogen triggers the release of a protein that binds a transcriptional regulator.
a. true
b. false
Answer: a. true
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What change would allow a chemical reaction to proceed more quickly, while only minimally increasing the energy input required?
a. denaturing the substrate b. adding a catalyst c. heating the reactants d. diluting the products
What information cannot be determined from the DNA sequence of a cDNA clone?
A) exon sequences B) sequence of the promoter C) similarity to previously identified sequences D) amino acid sequence of the encoded polypeptides E) sequence of the spliced mRNA transcript
The peptidoglycan of bacterial cell walls contains a carbohydrate matrix linked together by short chains of
A. amino acids. B. nucleotides. C. fatty acids. D. steroids. E. water molecules.
Substances that can be added to a microbial culture to prevent drastic changes in pH are called ________
a. supplements b. antacids c. bases d. buffers