Insect pest resistant Bt cotton plant was developed using
somaclonal variation
micropropagation
somatic hybridisation
Transgenic technology
Emasculation ensures cross-pollination in
staminate flower
bisexual flower
neuter flower
pistillate flower
Genes which are located only in the X-chromosome are known as
epistasis genes
holandric genes
operator genes
antiepistasis genes
Industrial melanism is an
effect of industrial pollution
effect of mutation
evidence of survival of fittest
evidence of favour of natural selection
D.
evidence of favour of natural selection
Industrial melanism is an evidence of natural selection. It is the prevalence of dark-coloured varieties of animals (especially moths) in industrial areas where they are better camouflaged than paler or light forms. Hence, darker pigmented individuals have a higher chances of survival and is favoured by 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
'Kyoto Protocol' is a multination international treaty for
phasing out green house gases
controlling ozone destroying substances
management of hazardous wastes
conservation of biodiversity