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DNA Structure and Replication

DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

helicase
primase
DNA ligase
DNA polymerase

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

ionic bonds between the pair of bases
None of these
covalent bonds between the pair of bases
hydrogen bonds between the pair of bases

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DNA Structure and Replication
Each replication bubbles consists of

2 replication forks
4 replication forks
3 replication forks
1 replication forks

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DNA Structure and Replication
What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

None of these
H
S
B

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DNA Structure and Replication
The RNA primers used to initiate replication in E. coli

are removed by Pol I
are removed by helicase + ATP
result in Okazaki fragments on leading strand
are joined together by DNA ligase

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

Cytosine
Adenine
Thymine
Guanine

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