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DNA Structure and Replication

DNA Structure and Replication
The 5' and 3' numbers are related to the

length of the DNA strand
carbon number in sugar
the number of phosphates
the base pair rule

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

helix frequency
twisting number
linking number
none of these

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DNA Structure and Replication
TM refers to the temperature at which

50% of a DNA molecule is denatured
membranes are 50% fluid
All of these
50% of a protein molecules are denatured

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DNA Structure and Replication
DNA gyrase in E. coli

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

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DNA Structure and Replication
The nucleosome consists of histone

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

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DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

X-DNA
A-DNA
Z-DNA
B-DNA

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