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DNA Structure and Replication

DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

none of these
solenoid
kinoplast
halonoid

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DNA Structure and Replication
In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

semiconservative
mutational
antiparallel
discontinuous

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DNA Structure and Replication
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%?

Remains same
Can not be compared
Increases
Decreases

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DNA Structure and Replication
In DNA, guanine pairs with

Thymine
Cytosine
Uracil
Adenine

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DNA Structure and Replication
Overwinding or overtightening of DNA during replication is caused and removed by

Single stranded protein, DNAa
DNAa, gyrase
DNAb, gyrase
DNAb, DNA polymerase

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

low temperature and Mg++
high temperature and Mg++
low temperature and Ca++
high temperature and Ca++

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