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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?

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

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DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

3000 kilobase
5500 kilobase
6500 kilobase
4500 kilobase

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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
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

A smear
Three
One
Two

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DNA Structure and Replication
In sperm heads, DNA is particularly highly condensed and the histones are replaced with small basic protein called

pyrimidines
protamines
purines
All of these

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

introns
transposons
retrovirus
moving elements

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