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DNA Structure and Replication

DNA Structure and Replication
How does ethidium bromide interact with DNA?

It does not interact
It binds to adenine
It binds to phosphate
It intercalates between bases

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

dATP
dTTP
all of these
dGTP and dCTP

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DNA Structure and Replication
DNA gyrase in E. coli

performs the same function as helicase in eukaryotes
is required only at the oriC site
can be inhibited with antibiotics
adds positive supercoils to chromosomal DNA

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DNA Structure and Replication
Overwinding or overtightening of DNA during replication is caused and removed by

Single stranded protein, DNAa
DNAa, gyrase
DNAb, DNA polymerase
DNAb, gyrase

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DNA Structure and Replication
Reverse transcriptase produces

DNA from peptides
DNA from RNA
RNA from RNA
RNA from DNA

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DNA Structure and Replication
Okazaki fragments occur during

transformation
polymerase reaction
replication
synthesis

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MORE MCQ ON DNA Structure and Replication

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