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DNA Structure and Replication

DNA Structure and Replication
DNA replication in eukaryotes occurs only in

G2 phase
G1 phase
S phase
M phase

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DNA Structure and Replication
Automated DNA sequencing uses the chain termination method

with no primer
but with an oligonucleotide primer labeled with a fluorescent dye
but with a polynucleotide primer labeled with a fluorescent dye
either (b) or (c)

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DNA Structure and Replication
What does ligase do during replication of DNA?

Makes copies of mRNA from DNA
Digests mRNA when it is no longer needed
Synthesizes the lagging strand
Joins nicks in DNA strands

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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
none of these
strandase

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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
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Cytosine
Guanine
Uracil
Phosphate

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MORE MCQ ON DNA Structure and Replication

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