Which one of the following pair is a purine pair?
Uracil, Guanine
Cytosine, Thymine
Adenine, Guanine
Adenine, Thymine
A nucleoside differs from a nucleotide in not having
Which of the following is incorrect for $DNA$ structure?
Packaging of $DNA$ helix
If a length of $DNA$ has $45,000$ base pairs, how many complete turns will the $DNA$ molecule take?
What is central dogma and describe the packing of $DNA$ helix ?