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DNA Structure and Replication

DNA Structure and Replication
The accepted hypothesis for DNA replication is

evolutionary theory
semi-conservative theory
dispersive theory
conservative theory

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DNA Structure and Replication
An important difference between eukaryotic and prokaryotic DNA replication is

multiple origins of replication in eukaryotes
RNA primers are not required in eukaryotes
more DNA polymerases are found in eukaryotes
eukaryotic DNA polymerases are faster

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DNA Structure and Replication
Which of the following species lack a 'classical' histone H1?

Saccharomyces cerevisiae
Strongylocentrotus purpuratus
Xenopus laevis
Arabidopsis thaliana

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DNA Structure and Replication
The RNA primers used to initiate replication in E. coli

are removed by helicase + ATP
result in Okazaki fragments on leading strand
are joined together by DNA ligase
are removed by Pol I

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

Helicase
DNA polymerase
Primase
DNA ligase

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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
60 to 80°C
70 to 90°C
50 to 60°C

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