In the Meselson-Stahl experiment, bacterial DNA was labeled completely with heavy nitrogen (15N) and then grown in the presence of light nitrogen (14N) . When only mixed DNA was observed after ONE generation of growth in14N, what was the conclusion?
A) DNA replication is semiconservative
B) DNA replication is conservative
C) DNA replication is dispersive
D) DNA replication is either semiconservative or dispersive
E) DNA replication is either semiconservative or conservative
Correct Answer:
Verified
Q30: Helicase _.
A) proofreads the newly synthesized DNA
B)
Q31: A DNA double helix has two strands
Q32: DNA replication is said to be semiconservative
Q33: Which nucleotide sequence is complementary to the
Q34: DNA ligase closes nicks between _ by
Q36: The two strands of a DNA double
Q37: A short RNA chain is synthesized as
Q38: Which statement correctly describes DNA base pairing?
A)
Q39: In DNA, the purines are _.
A) thymine
Q40: Wilkins and Franklin studied the structure of
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