Question

Important objective of biotechnology in the agriculture section is to
(a)Produce pest-resistant varieties of plants.
(b) Increase nitrogen content.
(c)Decrease the seed number.
(d) Increase plant weight.

Answer 1

Hint Damage caused by the pests in a cultivating field is a very big problem. Worldwide scientists are trying to solve this problem because this problem is directly or indirectly affecting the lives of farmers and other humans also.

Complete answer:
The most important objective of biotechnology related to the agriculture field is to produce pest-resistant varieties of plants. The pest-resistant crops are modified crops that have been genetically modified in such a way that they are poisonous to certain pests and insects. They are also called Bt crops because of the presence of the bacterium (Bacillus thuringiensis) which produces toxins to kill some insects. The biotechnologists are very much able to isolate the gene responsible for the production of toxins and can introduce a number of crops using these genes. These kinds of plants provide many advantages to farmers. The most important advantage is that production of labor free e insect protected plants. These plants also have some disadvantages. For example, the pesticide is produced inside the BT plants they are not sprayed from outside thus toxicity remains in the plant and may cause various types of allergy to the consumers. It is impossible to watch the modified genes that is why scientists are concerned about the adverse effect of BT plants on human animals and even on wildlife if they are eaten by wild animals.

So the correct answer is,'To produce a pest resistance variety of plants'.

Note:
- The pest-resistant crops are modified crops that have been genetically modified in such a way that they are poisonous to certain pests and insects.
-The biotechnologists are very much able to isolate the gene responsible for the production of toxins and can introduce a number of crops using these genes.
-The most important advantage is that production of labor free e insect protected plants.
-The pesticide is produced inside the BT plants they are not sprayed from outside thus toxicity remains in the plant and may cause various types of allergy to the consumers.