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DNA Structure and Replication

DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

A smear
One
Two
Three

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

bZIP
TFIID
helix-turn-helix
zinc finger

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DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

50 to 60°C
60 to 80°C
70 to 90°C
80 to l00°C

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DNA Structure and Replication
DNA with a G-C content of 50% will melt at approximately

60°C
100 °C
70 °C
90 °C

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

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

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DNA Structure and Replication
The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

None of these
shortening of the double stranded replicated portion
using enzyme called telomerase
using RNA as a template

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