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DNA Structure and Replication

DNA Structure and Replication
In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

antiparallel
discontinuous
semiconservative
mutational

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DNA Structure and Replication
What is the approximate percentage of repetitive DNA sequences in human DNA?

40 to 50%
20 to 30%
10 to 20%
30 to 40%

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DNA Structure and Replication
First evident that DNA is genetic material comes from the experiment of Griffith is

replication
transformation
translation
transduction

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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 of the following species lack a 'classical' histone H1?

Strongylocentrotus purpuratus
Saccharomyces cerevisiae
Arabidopsis thaliana
Xenopus laevis

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DNA Structure and Replication
DNA gyrase in E. coli

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

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