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DNA Structure and Replication

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

resorption
absorption
density
adhesion

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DNA Structure and Replication
Which of the following enzyme adds complementary bases during replication?

Replicase
Helicase
Polymerase
Synthesase

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DNA Structure and Replication
DNA segments capable of moving from one place in the genome to another is known as

retrovirus
transposons
moving elements
introns

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DNA Structure and Replication
DNA gyrase in E. coli

is required only at the oriC site
can be inhibited with antibiotics
performs the same function as helicase in eukaryotes
adds positive supercoils to chromosomal DNA

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DNA Structure and Replication
Okazaki fragments occur during

synthesis
polymerase reaction
replication
transformation

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DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

80 to l00°C
50 to 60°C
70 to 90°C
60 to 80°C

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