1.
Which of the following amino acids is not optically active?
2.
One full turn of the helical strand involves ... steps
3.
One strand of DNA has sequence of nucleotide 3' ATTCGCTAT 5' then other strand of DNA has
4.
In a protein molecule, the amino acid units are linked together by ......... bonds formed between the amino acid units and the carboxyl group of successive amino acids
5.
A in the given structure represents