The thermostable enzymes, Taq and Pfu, isolated from thermophilic bacteria are

• RNA polymerases

• DNA ligases

• DNA polymerases

• Restriction endonucleases

Gyms revoluta is popularly known as

• Sago palm

• Royal palm

• Date palm

• Sea palm

The ultimate source of energy for a living being is

• Sunlight

• ATP

• Fats

•  Carbohydrates

Biolistic technique is used in

• Gene transfer process

• Tissue culture process

• Hybridisation process

• Germplasm conservation process

Select the incorrect statement.

• Stellar’s sea cow and passenger pigeon got extinct due to over exploitation by men

• The mitotic convention on biological diversity was held in 1992

• Species diversity increase as we move away from the equator towards the poles

• Lantana and Eichhomia are invasive weed species in India

Herbicide-resistant gene in a plant is

• Mt

• Gt

• Ct

• Bt

The effect of cigarette smoking and radon in combination on lungs is

• Fatal

• Synergistic

• Mutualistic

• Antagonistic

The largest gene in man is

• Insulin gene

• Tumour suppressor gene

• Beta globin gene of haemoglobin

• Dystrophin

Skin colour is controlled b

• Single gene

• 3 pairs of genes

• 2 pairs of genes

• 2 pairs of genes with an intragene

Which of the following species are restricted to an area?

• Sympatric species

• Sibling species

• Allopatric species

• Endemic species