Question

Why are scientists concerned about the use of the Bt toxin, which is used to kill insects, in genetic engineering?

The Bt toxin is killing too many insects.
The Bt toxin stays in the soil for long periods of time.
The Bt toxin gene is not readily accepted by plants.
The Bt toxin has been known to cause disease in plants.

Answer 1

Answer: C

Explanation: on Edge

Answer 2

Because the "Bt toxin gene is not readily accepted by plants." scientists concerned about the use of the Bt toxin, which is used to kill insects, in genetic engineering

Step-by-step explanation:

"Bacillus thuringiensis" that is commonly reffered as (Bt) is a gram positive(Giving positive resultsgram stain test) bacteria.This Bacillus thuringiensis found to be present in the soil. It is biologically used as alternative source against pesticide. The genetically modified crop of tobacco was first invented by the the Belgian company Plant Genetic System. This crop was resistant to insects it occurs by expressing the cry genes from the B. thuringiensis, and the delta-endotoxin is present in the crop. The use of Bt toxins were helped in promotion of the requirement of the extensive evaluation of safety for the use in food and potential in the environment.