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DNA Structure and Replication

DNA Structure and Replication
Okazaki fragments occur during

synthesis
replication
transformation
polymerase reaction

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

hydrogen bonds between the pair of bases
covalent bonds between the pair of bases
ionic bonds between the pair of bases
None of these

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

About 100
Thousands and tens of thousands
One
none of these

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DNA Structure and Replication
The DNA polymerase in bacteria, responsible for DNA synthesis is

Polymerase I
all of these
Polymerase II
Polymerase III

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DNA Structure and Replication
The chromosomal DNA complexes with

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

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DNA Structure and Replication
What bands will be observed in a cesium chloride gradient after two rounds of replication?

One medium band
One medium and one heavy band
One light and one medium band
One light, one medium and one heavy band

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