Insect pest resistant Bt cotton plant was developed using
somaclonal variation
micropropagation
somatic hybridisation
Transgenic technology
D.
Transgenic technology
Bt cotton is a genetically modified variety of cotton producing an insecticide. It was developed by inserting Cry gene coding for Bt toxin into cotton plant genome by using transgenic technology causing cotton to produce this natural insecticide in its tissues. It was obtained from Bacillus thuringiensis. Techniques such as somaclonal variation, somatic hybridisation and micropropagation are the methods that rely as tissue culture techniques of producing plants by using different plant parts. They does not involve the gene level transfer.
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
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
