The human body does not produce
1. DNA
2. vitamins
3. hormones
4. enzymes
An amine among the following that acts as hormone is :
1. Thyroxine
2. Oxypurin
3. Insulin
4. Progesterone
Which is not a true statement?
1. a-carbon of a-amino acid is asymmetric except glycine
2. All proteins are found in L-form
3. Human body can synthesis all proteins they need
4. At pH = 7 both amino and carboxylic groups exist in ionised form
Glycolysis is
1. oxidation of glucose to pyruvate
2. conversion of glucose to haem
3. oxidation of glucose to glutamate
4. conversion of pyruvate to citrate
The correct option about the presence of H-bond in nucleotides is:
1. A-T, G-C
2. A-G, T-C
3. G-T, A-C
4. A-A, T-T
RNA and DNA are chiral molecules, their chirality is due to
1. L-sugar component
2. chiral bases
3. chiral phosphate ester units
4. D-sugar-component
The couplings between base units of DNA is through :
1. | Hydrogen bonding | 2. | Electrostatic bonding |
3. | Covalent bonding | 4. | Van der waal's forces |
a-D-(+)-glucose and b-D-(+)-glucose are
1. | Anomers | 2. | Epimers |
3. | Enantiomers | 4. | Geometrical isomers |
Which of the following is the sweetest sugar?
1. Sucrose
2. Glucose
3. Fructose
4. Maltose
Compound that gives positive Fehling's solution test is :
1. Sucrose
2. Glucose
3. Fat
4. Protein