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DNA Structure and Replication

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
Uracil
Guanine
Phosphate

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DNA Structure and Replication
The 5' and 3' numbers are related to the

length of the DNA strand
the number of phosphates
the base pair rule
carbon number in sugar

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It does not interact
It binds to phosphate
It binds to adenine
It intercalates between bases

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DNA Structure and Replication
The packing ratio of nucleosomes is about

9
6
8
7

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DNA Structure and Replication
The chromosomal DNA complexes with

four types of histone as H1, H2A, H3 and H4
three types of histone as H1, H2A and H4
two types of histone as H1 and H4
five types of histone as H1, H2A, H2B, H3 and H4

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DNA Structure and Replication
Proteins involved in opening a replication bubble are

ligase
single stranded binding proteins
DNA topoisomerase
DNA helicases

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