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Many copies of a DNA molecule in a test tube are procurred by

Polymerase chain reaction (PCR)
Molecular chain reaction (MCR)
Ephemeral chain reaction (ECR)
All of these
Additional Questions

Ti Plasmid is useful in

Answer

The animals whose genome is altered by introduction of transgene is known as –

Answer

What is true for the given statements ?
Statement X : Birds and Mammals obtain greater body size in cold region than in warm regions.
Statement Y : Birds and Mammals are Homeothermic (warm blooded)animals.
Statement Z : Reptiles are smaller in cold region.

Answer

Crustacian Astacus = Green land Marine turtle
what is ‘X’ accroding to the information given ?

Answer

How many Indian plant species are used to extract essential oils and scents ?

Answer

Orchid living on the tree is an example of …………..?

Answer

In ecosystem the source of energy is….

Answer

Which type of relation is found in between richness of species and variety of phylum ?

Answer

What is the effect of air pollution on living organisms?

Answer

Particulate matter of which size causes greatest harm to human health?

Answer
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