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DNA Structure and Replication

DNA Structure and Replication
The nucleosome consists of histone

tetramer and 146 bp of DNA
hexamer and 146 bp of DNA
octamer and 146 bp of DNA
None of these

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DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

5500 kilobase
4500 kilobase
3000 kilobase
6500 kilobase

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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
none of these
DNA polymerase
strandase

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DNA Structure and Replication
Deoxyribonucleoside triphosphates, being need in the chain termination methods are

dATP
dTTP
all of these
dGTP and dCTP

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DNA Structure and Replication
One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?

Semi-conservative theory
Dispersive theory
Conservative theory
Evolutionary theory

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DNA Structure and Replication
The accepted hypothesis for DNA replication is

conservative theory
semi-conservative theory
evolutionary theory
dispersive theory

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