The biggest constraint of plant breeding is:

1. availability of desirable gene in the crop and its wild relatives

2. infrastructure

3. trained manpower

4. transfer of genes from unrelated sources.

Lysine and tryptophan are:

1. proteins

2. non-essential amino acids

3. essential amino acids

4. aromatic amino acids.

Micro-propagation is:

1. propagation of microbes in vitro

2. propagation of plants in vitro

3. propagation of cells in vitro

4. growing plants on a smaller scale

Protoplast is:

To isolate protoplast, one needs:

1. pectinase

2. cellulase

3. both pectinase and cellulase

4. chitinase.

Which one of the following is a marine fish?

Which one of the following products of apiculture is used in cosmetics and polishes?

More than 70 per cent of livestock population is found in:

The agriculture sector of India employs about:

1. 50 percent of the population

2. 70 percent of the population

3. 30 percent of the population

4. 60 percent of the population.

33 percent of India’s Gross Domestic Product comes from: