Multiple Choice
Which of the following observations is part of the evidence supporting the Watson-Crick structure of DNA?
A) In the DNAs examined from a wide variety of sources, the adenine and cytosine contents are equal.
B) A non-virulent pneumococcus can be transformed to a virulent strain by the addition of DNA.
C) RNA is susceptible to hydrolysis by alkali, whereas DNA is not.
D) The sum of the purines present in any double-stranded DNA is equal to the sum of the pyrimidines present.
Correct Answer:
Verified
Correct Answer:
Verified
Q13: The nucleotide sequence 5'-ATTGCAG-3' should base pair
Q14: Restriction enzymes have all of the following
Q15: Enzymes that catalyze stepwise hydrolysis of mononucleotides
Q16: All of the following statements concerning DNA
Q17: Each of the following describes tRNA EXCEPT<br>A)
Q19: Restriction endonucleases<br>A) cleave single stranded DNA preferentially.<br>B)
Q20: Which of the following statements about supercoiling
Q21: Which best describes the mechanism of OH--mediated
Q22: In mammalian cells, rRNA<br>A) accounts for of
Q23: All of the following statements about histones