Topic 4 GMOs

Question 1

What is a GMO?

Answer 1

An organism whose DNA has been deliberately altered.

Question 2

What are BT crops?

Answer 2

GM plants containing a gene from Bacillus thuringiensis.

Question 3

What does the BT gene do?

Answer 3

Produces a protein toxic to insect pests.

Question 4

Why are BT crops useful?

Answer 4

Reduce pesticide use and increase yield.

Question 5

What is a risk of BT crops?

Answer 5

Pests may evolve resistance; effects on non‑target species.

Question 6

What are advantages of GM crops?

Answer 6

Higher yield, better nutrition, disease resistance.

Question 7

What are disadvantages of GM crops?

Answer 7

Ethical concerns, reduced biodiversity, unknown long‑term effects.

Question 8

Why do some people oppose GMOs?

Answer 8

Concerns about safety, environment, and corporate control of seeds.