Golden rice

$I$. It is a transgenic variety of rice

$II$. It contains a goods quality of $\beta$-carotene (provitamin-A)

$III$. $\beta$-carotene is a principal source of vitamin- $A$

$IV$. The grains of the rice are yellow in colour due to $\beta$-carotene. The rice is commonly called golden rice

Which of the statements given above are correct?

Identify the transgenic crops that are modified to develop natural resistance to insects or pests from the follwong :

Plants, bacteria, fungi and animals whose genes have been altered by manipulation are called

Many proteins are secreted in their inactive form. This is also true of many toxic proteins produced by microorganisms. Explain how the mechanism is useful for the organism producing the toxin ?

Highlight any four areas where genetic modification of plants has been useful.