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DNA Structure and Replication

DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Cytosine
Thymine
Guanine
Adenine

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

Three
One
Two
A smear

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DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

helicase
DNA polymerase
strandase
none of these

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DNA Structure and Replication
In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

semiconservative
discontinuous
antiparallel
mutational

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DNA Structure and Replication
The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

None of these
using RNA as a template
shortening of the double stranded replicated portion
using enzyme called telomerase

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

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

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