MCQ
The strongest evidence that $DNA$ is genetic material comes from
- AThat chromosomes are made up of $DNA$
- ✓Transformation of bacterial cells
- CThat $DNA$ is not present in the cytoplasm
- DThat $DNA$ is present in the nucleus
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I$. Very long molecule
$II$. Double-stranded
$III$. $DNA$ or $RNA$
$IV$. Complementary to a part of desired gene
The correct pair is
$I.$ The bacteria Bacillusthuringiensis $(B t)$ are used to control butterfly catterpillers
$II.$ Fresh spores of $B t$ are mixed with water and sprayed on seeds such as brassicas and fruit trees
$III.$ Insect larvae, after eating these are killed by the toxin released in their gut
$IV.$ Bt toxin genes have been introduced into plants to provide resistance to pests
Which of the statements given above are correct?