Target Exam

CUET

Subject

Biology

Chapter

Biotechnology and its Applications

Question:

Identify the incorrect fact about genetic modification.

Options:

Crops are made more tolerant to abiotic stresses (cold, drought, salt, heat)

Increase in efficiency of mineral usage by plants

Help to reduce post harvest losses

Increase in reliance on chemical pesticides (pest-resistant crops)

Correct Answer:

Increase in reliance on chemical pesticides (pest-resistant crops)

Explanation:

The correct answer is Option (4) → Increase in reliance on chemical pesticides (pest-resistant crops) 

Plants, bacteria, fungi and animals whose genes have been altered by manipulation are called Genetically Modified Organisms (GMO). GM plants have been useful in many ways. Genetic modification has:

(i) made crops more tolerant to abiotic stresses (cold, drought, salt, heat).

(ii) reduced reliance on chemical pesticides (pest-resistant crops).

(iii) helped to reduce post harvest losses.

(iv) increased efficiency of mineral usage by plants (this prevents early exhaustion of fertility of soil).

(v) enhanced nutritional value of food, e.g., golden rice, i.e., Vitamin ‘A’ enriched rice.

GM crops are often developed to increase yield by making them more resistant to pests, diseases, and abiotic stresses (such as drought, salinity, and extreme temperatures). Other benefits of GM crops include pest resistance and enhanced nutritional value, both of which contribute to better crop productivity and quality.