Exercise: Dna Structure And Replication

Questions for: Dna Structure And Replication

DNAs when charged, migrate in a gel towards the
A:
positive pole
B:
negative pole
C:
will not migrate
D:
none of these
Answer: A
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What is the only common methylation in the DNA of eukaryotes?
A:
Adenosine in GpA dinucleotides
B:
Guanosine in ApGpA trinucleotides
C:
Cytosine in CpG dinucleotides
D:
None of the above
Answer: C
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In DNA, guanine pairs with
A:
Adenine
B:
Cytosine
C:
Thymine
D:
Uracil
Answer: B
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In DNA, there are
A:
five bases known as adenine, guanine, thymine, tryptophan and cytosine
B:
four bases known as adenine, guanine, thymine and cytosine
C:
three bases known as adenine, guanine and cytosine
D:
only two bases known as adenine and cytosine
Answer: B
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DNA gyrase in E. coli
A:
adds positive supercoils to chromosomal DNA
B:
can be inhibited with antibiotics
C:
is required only at the oriC site
D:
performs the same function as helicase in eukaryotes
Answer: B
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