The primary structure of a polypeptide has

1. Interchain disulphide bonds

2. Peptide bonds

3. H-bonds

4. Glycosidic bonds

Non-reducing sugar among the following is

A basic amino acid among the following is

1. Glutamate

2. Aspartate

3. Lysine

4. Valine

Ricin and abrin are

1. Alkaloids

2. Toxins

3. Lectins

4. Pigments

Nucleic acids exhibit

The backbone of a DNA molecules is made up of 

 If the sequence of bases in one of the DNA strand is is A G G A G A A, then the sequence of bases in the other complementary strand of DNA would be

1. C C T T C T T

2. T C T C T C C

3. T C C T C T T

4. C C T C T C T

In a DNA molecule adenine of one strand base pair with _   on the other strand

In B-DNA, the rise per base pair would be 

1. 4.3 A

2. 2.4 A

3. 3.4 A

4. 4.2 A

The nitrogenous bases of the two  strands of DNA are joined by