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DNA Structure and Replication

DNA Structure and Replication
The most common liquid volumes in molecular biology are measured in

ml
1
μl
nl

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

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

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DNA Structure and Replication
DNA gyrase in E. coli

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

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DNA Structure and Replication
Which of the following enzyme adds complementary bases during replication?

Synthesase
Helicase
Polymerase
Replicase

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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

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

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

covalent bonds between the pair of bases
None of these
ionic bonds between the pair of bases
hydrogen bonds between the pair of bases

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