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Which of the following amino acids is required for both purine and pyrimidine synthesis?
Aspartate donates N1 of purine and C4, c5, c6 & N1 of pyrimidine. Glycine gives only C4, 5 & N7 of purine.
A ribose (but not deoxyribose) nucleotide is
ATP is
How many pair of nucleotides are present in one helix of β-DNA?
In DNA guanine pairs with
The base pairs of DNA are correctly shown as
The similarity between DNA and RNA is that both are
In order to produce amino acids from methane how many substituents should occupy the valency positions of the carbon?
Substrate concentration at which an enzyme attains half of its max. velocity is
Energy required for start of biochemical reaction is