Effects of Bt Toxin on Humans

Q.

What is retroperistalsis?

Q.

How do allergens enter the human body?

Q. Which substances are found in the poison of cobra and viper?

1. Hepakine and Dicumarole
2. Cardiotoxine
3. Neurotoxin and Cardiotoxin
4. Cardiotoxin and Haemorrhaging

Q.

Cry proteins are not toxic to humans because:

1. The medium in human gut is acidic.

2. The medium in human gut is basic.

3. Cry proteins are destroyed by saliva.

4. None of the above.

Q.

why Bt toxin is not toxic to human beings ?

Q.

Cry proteins are not toxic to humans because:

1. The medium in human gut is acidic.

2. The medium in human gut is basic.

3. Cry proteins are destroyed by saliva.

4. None of the above.

Q. What will happen if you were to consume Bt corn?

1. Autodigestion leading to death
2. Cry protein will induce stomach cancer
3. Cry protein will be excreted or broken down in the body
4. B. thuringiensis infection

Q. Select the statement which is not true about Bt toxin

1. Bt toxin can harm humans if consumed
2. Bt toxin is encoded by Cry gene
3. Bt toxin is present in the inactive form in the plant and needs alkaline pH to be activated
4. Bollworm is not the only insect that is killed by Bt toxin

Q. Phytoalexins are toxins, like antifungal or fungistatic substances produced by the host as defensive measure after infection and are generally

1. Phenolic compounds
2. Lipids
3. Glycoproteins
4. Proteins