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DNA Structure and Replication

DNA Structure and Replication
For the DNA replication in eukaryotes, the cell cycle consists of

G1,S, G2 and M phases
S, G2 and M phases
G1, G2 and M phases
G2 and M phases

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DNA Structure and Replication
Which of the following would not contain DNA?

Glass crystals
Mold
Yeast
Bacteria

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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?

none of these
Thousands and tens of thousands
About 100
One

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Leading strands
Replication origins
Okazaki fragments
Replication forks

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

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

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

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

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