LC CH13
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Which of the following statements most accurately describes transformation in bacteria?
D. Transformation is the assimilation of external DNA into a cell.
Suppose a double-stranded D N A molecule was shown to have 15% adenine bases. What would be the expected percentage of guanine bases in that molecule?
B. 35%
In trying to determine whether DNA or protein was the genetic material, Hershey and Chase made use of which of the following facts about these two types of molecules?
B. DNA contains phosphorus, whereas protein does not.
In the DNA double helix, why does a purine always pair with a pyrimidine?
C. Because they are different in size, pairing a purine and a pyrimidine together keeps the width of the DNA molecule uniform (I think)