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DNA Structure and Replication

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

dGTP and dCTP
all of these
dATP
dTTP

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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
70 to 90°C
60 to 80°C
50 to 60°C

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DNA Structure and Replication
The chromosomal DNA complexes with

five types of histone as H1, H2A, H2B, H3 and H4
four types of histone as H1, H2A, H3 and H4
two types of histone as H1 and H4
three types of histone as H1, H2A and H4

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

Arabidopsis thaliana
Xenopus laevis
Saccharomyces cerevisiae
Strongylocentrotus purpuratus

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Okazaki fragments
Lagging strand
Primers
Leading strands

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

high temperature and Ca++
high temperature and Mg++
low temperature and Ca++
low temperature and Mg++

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