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DNA Structure and Replication

DNA Structure and Replication
The most common liquid volumes in molecular biology are measured in

nl
μl
1
ml

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

Primase
DNA polymerase
DNA ligase
Helicase

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DNA Structure and Replication
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%?

Decreases
Increases
Remains same
Can not be compared

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DNA Structure and Replication
DNA replication takes place in which direction?

Vary from organism to organism
3' to 5'
Randomly
5 'to 3'

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

both (a) and (b)
reverse transcriptase
primase
RNA polymerase

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

All of these
H-NS
HSP-1
HU

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