LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What naturally occurring soil bacterium is a protein that wards off the European corn borer?
A
Carotene
B
Lycopene
C
Hepatitis B
D
Bt
Explanation: 

Detailed explanation-1: -In the case of Bt corn, the donor organism is a naturally occurring soil bacterium, Bacillus thuringiensis, and the gene of interest produces a protein that kills Lepidoptera larvae, in particular, European corn borer.

Detailed explanation-2: -Bt corn is enhanced through biotechnology to protect against insect pests. Its built-in insect protection comes from a naturally occurring microorganism called Bacillus thuringiensis or “Bt.” The protein produced by Bt corn selectively targets caterpillars within the order of Lepidoptera.

Detailed explanation-3: -The corn borers are controlled by the toxin proteins coded by the gene cryIAb.

Detailed explanation-4: -Bacillus thuringiensis (Bt), soil-dwelling bacterium that naturally produces a toxin that is fatal to certain herbivorous insects. The toxin produced by Bacillus thuringiensis (Bt) has been used as an insecticide spray since the 1920s and is commonly used in organic farming.

There is 1 question to complete.