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DNA Structure and Replication

DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

Z-DNA
X-DNA
B-DNA
A-DNA

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It binds to phosphate
It does not interact
It binds to adenine
It intercalates between bases

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DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Thymine
Adenine
Guanine
Cytosine

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

none of these
twisting number
linking number
helix frequency

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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

restriction endonuclease
reverse transcriptase
transposase
helicase

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

Xenopus laevis
Strongylocentrotus purpuratus
Saccharomyces cerevisiae
Arabidopsis thaliana

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