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DNA Structure and Replication

DNA Structure and Replication
An RNA primer is synthesized by

DNA topoisomerase
ligase
DNA helicases
primase

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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
Synthesizes the lagging strand
Joins nicks in DNA strands

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DNA Structure and Replication
A cesium chloride will separate DNA molecules by

absorption
density
resorption
adhesion

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DNA Structure and Replication
Without telomerase, what would happen to the ends of chromosomes after each round of replication?

Chromosomes would become progressively shorter
Nothing would happen
None of these
Chromosomes would get longer

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DNA Structure and Replication
Each replication bubbles consists of

2 replication forks
4 replication forks
3 replication forks
1 replication forks

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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?

Okazaki fragments
Leading strands
Replication origins
Replication forks

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