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DNA Structure and Replication

DNA Structure and Replication
Each replication bubbles consists of

3 replication forks
2 replication forks
1 replication forks
4 replication forks

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

none of these
Thousands and tens of thousands
About 100
One

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DNA Structure and Replication
Which of the following is not a structural motif in DNA binding proteins?

bZIP
helix-turn-helix
zinc finger
TFIID

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DNA Structure and Replication
The nucleosome consists of histone

tetramer and 146 bp of DNA
None of these
octamer and 146 bp of DNA
hexamer and 146 bp of DNA

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DNA Structure and Replication
The overall conclusion of the Hershey-Chase experiment was that

proteins and DNA were responsible for heredity
the ratio of Adenine to thymine was always the same
DNA was responsible for heredity
phage DNA was similar to bacterial DNA

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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?

Semi-conservative theory
Dispersive theory
Evolutionary theory
Conservative theory

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