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DNA Structure and Replication

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

pyrimidines
purines
protamines
All of these

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DNA Structure and Replication
Deoxyribonucleoside triphosphates, being need in the chain termination methods are

all of these
dATP
dTTP
dGTP and dCTP

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DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

solenoid
none of these
kinoplast
halonoid

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

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

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DNA Structure and Replication
What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

None of these
S
H
B

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

Saccharomyces cerevisiae
Arabidopsis thaliana
Strongylocentrotus purpuratus
Xenopus laevis

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