The second stage in the food chain of an aquatic ecosystem is mainly contributed by

Antibiotic resistance is used as a selectable marker for

Microbe used for Sarurkraut preparation

Postponing of first irrigation to 40-45 days after sowing is always preferable for cotton crop to

The extractant used for available phosphorus in soils is

Which of the following fruit is a single seeded nut ?

Reversion occurs due to

In India Genetic Engineering Approval Committee (GEAC) is responsible for monitoring of GM crops come under ministry of :

All plant viruses (except cauliflower mosaic virus) contain

One millimole of CaCO3 weight is

The chief function of money is

National Institute of Agriculture Marketing (NIAM) is located at

Ovum produce

The anti-knock quality of petrol fuels is given by :

The ultimate source of organic variation is

The major pollution compounds released in the aquatic ecosystem from oil spillage is

Commonly used host in gene cloning is

Ropiness of unpacked bread is due to growth of

Soils having 200 kg available K₂O/ha will be classed as

'Cricket ball' is an improved variety of