Formation of polysome does not require

• rRNA

• mRNA

• tRNA

• snRNA

The concept of hot- spot was first introduced by

• Mayer

• Simpson

• Myers

• David

Genes which are located only in the X-chromosome are known as

• epistasis genes

• holandric genes

• operator genes

• antiepistasis genes

Intermediate host of malarial parasite is

• pig

• man

• mosquito

• larva of mosquito

Insect pest resistant Bt cotton plant was developed using

• somaclonal variation

• micropropagation

• somatic hybridisation

• Transgenic technology

'Kyoto Protocol' is a multination international treaty for

• phasing out green house gases

• controlling ozone destroying substances

• management of hazardous wastes

• conservation of biodiversity

Which codon is not an indicator of completion of protein synthesis?

• UAG

• AUG

• UAA

• UGA

Emasculation ensures cross-pollination in

• staminate flower

• bisexual flower

• neuter flower

• pistillate flower

Industrial melanism is an

• effect of industrial pollution

• effect of mutation

• evidence of survival of fittest

• evidence of favour of natural selection

With the rise of water temperature, dissolved oxygen

• remains unchanged

• increases in amount

• decreases in amount

• is more available to the aquatic organisms