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DNA Structure and Replication

DNA Structure and Replication
Which of the following would not contain DNA?

Yeast
Mold
Bacteria
Glass crystals

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DNA Structure and Replication
Which of the following in DNA replication and transcription are common?

None of these
incorporation of deoxynucleotides
utilization the same enzyme
synthesis in the 5'-3' direction

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DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

helicase
DNA polymerase
strandase
none of these

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

B
None of these
S
H

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DNA Structure and Replication
DNA gyrase in E. coli

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

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DNA Structure and Replication
One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?

Conservative theory
Evolutionary theory
Semi-conservative theory
Dispersive theory

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