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DNA Structure and Replication

DNA Structure and Replication
Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?

Tunicamycin
Erythromycin
All of these
Bleomycin

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DNA Structure and Replication
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?

Increases
Decreases
Can not be compared
Remains same

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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
Okazaki fragments occur on the __________ and are bonded together by __________

tRNA, polymerase
Leading strand, polymerase
Lagging strand, ligase
mRNA, anticodons

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DNA Structure and Replication
In DNA, guanine pairs with

Cytosine
Uracil
Adenine
Thymine

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DNA Structure and Replication
An important difference between eukaryotic and prokaryotic DNA replication is

eukaryotic DNA polymerases are faster
more DNA polymerases are found in eukaryotes
multiple origins of replication in eukaryotes
RNA primers are not required in eukaryotes

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