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DNA Structure and Replication

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

introns
retrovirus
transposons
moving elements

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

DNA ligase
Primase
Helicase
DNA polymerase

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DNA Structure and Replication
The accepted hypothesis for DNA replication is

semi-conservative theory
conservative theory
dispersive theory
evolutionary theory

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DNA Structure and Replication
Automated DNA sequencing uses the chain termination method

but with an oligonucleotide primer labeled with a fluorescent dye
with no primer
either (b) or (c)
but with a polynucleotide primer labeled with a fluorescent dye

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DNA Structure and Replication
DNA gyrase in E. coli

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

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DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

gyrase
polymerase
DNA ligase
RNA ligase

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