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DNA Structure and Replication

DNA Structure and Replication
The accepted hypothesis for DNA replication is

semi-conservative theory
evolutionary theory
conservative theory
dispersive theory

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DNA Structure and Replication
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Guanine
Phosphate
Cytosine
Uracil

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DNA Structure and Replication
Okazaki fragments occur on the __________ and are bonded together by __________

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

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DNA Structure and Replication
The chromosomal DNA complexes with

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

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DNA Structure and Replication
The size of a linear DNA fragment in a gel can be estimated by

the time it takes the gel to run
comparison with a molecular weight standard such as Hind III digested phage lambda
fluorescence in UV light
the sedimentation coefficient

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

DNA ligase
Helicase
Primase
DNA polymerase

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