The linking number (Lk) of a closed-circular, double-stranded DNA molecule is changed by:
A) breaking a strand, then rejoining it.
B) breaking a strand, unwinding or rewinding the DNA, then rejoining it.
C) breaking all hydrogen bonds in the DNA.
D) supercoiling without the breaking of any phosphodiester bonds.
E) underwinding without the breaking of any phosphodiester bonds.
Correct Answer:
Verified
Q2: Functional DNA is NOT found in:
A) bacterial
Q3: The DNA in a bacterial (prokaryotic) chromosome
Q4: Topoisomerases can:
A) change the linking number (Lk)
Q5: Plectonemic supercoils in a negatively supercoiled DNA
Q6: Histones are _ that are usually associated
Q8: DNA in a closed-circular, double-stranded molecule with
Q9: A commonality between type I and type
Q10: It is correct to say that DNA
Q11: The DNA in a eukaryotic chromosome is
Q12: Topoisomerases:
A) can change the linking number in
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