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DNA Structure and Replication

DNA Structure and Replication
The packing ratio of nucleosomes is about

9
6
7
8

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DNA Structure and Replication
DNA can be sequenced by the

physical method
chemical method
chain termination procedure
both (a) and (b)

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

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

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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?

Dispersive theory
Evolutionary theory
Conservative theory
Semi-conservative theory

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

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

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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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