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Biochemistry - DNA Structure and Replication

Exercise : DNA Structure and Replication - Section 1
16.
What is the only common methylation in the DNA of eukaryotes?
Adenosine in GpA dinucleotides
Guanosine in ApGpA trinucleotides
Cytosine in CpG dinucleotides
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
DNAs when charged, migrate in a gel towards the
positive pole
negative pole
will not migrate
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
What is the approximate size (in kb) of the E. coli genome?
3000 kilobase
4500 kilobase
5500 kilobase
6500 kilobase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?
Remains same
Increases
Decreases
Can not be compared
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
What is the range of melting point temperatures (Tm) for most DNA molecules?
50 to 60°C
60 to 80°C
70 to 90°C
80 to l00°C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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