- ✓It should provide the scope for slow changes (mutation) that are required for evolution.
- BIt should not able to generate its replica.
- CIt should not chemically and structurally be stable.
- DAll of the above
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$R -$ In $C_3$ plants $CO_2$ occurs in mesophyll cells and bundle sheath cells.
$(I)$ Khasi and Jaintia hills in Meghalaya
$(II)$ Aravalli hills of Rajasthan
$(III)$ Western ghat regions of Karnataka and Maharashtra
$(IV)$ Chanda and Bastar area of Madhya Pradesh
$I.$ 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?