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DNA Structure and Replication

DNA Structure and Replication
The packing ratio of nucleosomes is about

8
7
6
9

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

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

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DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

X-DNA
A-DNA
Z-DNA
B-DNA

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

4500 kilobase
6500 kilobase
5500 kilobase
3000 kilobase

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DNA Structure and Replication
The role of primase is to

proofread base pairing
cleave and unwinds short sections of DNA ahead of the replication fork
synthesize an RNA primer to begin the elongation process
dismantle RNA primer

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DNA Structure and Replication
Proteins which help to open the double helix for DNA synthesis are

DNA topoisomerase
single stranded binding proteins
DNA helicases
ligase

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