Chemical Safety Tests

Q. If the gene of interest was cloned at BamHI site in pBR322, the recombinant bacteria now would conclusively exhibit resistance to drug:

1. Tetracycline
2. Ampicillin
3. Neomycin
4. Kanamycin

Q. Regarding assertion and reason, choose the correct option
Assertion [A]: For toxicity testing, transgenic animals are made to carry genes which make them more sensitive to toxic substance.
Reason [R]: Transgenic animals are exposed to toxic substances to study the effect of these toxins.

1. Both A and R are correct and R does not explain A
2. A is correct but R is incorrect
3. Both A and R are correct and R explains A
4. Both A and R are incorrect

Q. Toxicity of drugs on humans can be studied by using transgenic animals by

1. Introducing a gene that shows change in physiology of organism
2. Introducing a complementary gene into organism
3. Introducing a gene that makes them more sensitive to toxic substances
4. All of the these

Q. With respect to the chemical safety testing, transgenic animals are made to carry genes which makes them

1. Both b and c are correct
2. insensitive to toxic chemicals
3. sensitive to toxic chemicals and then these animals are exposed to the nontoxic substances
4. sensitive to toxic chemicals

Q.

Regarding assertion and reason, choose the correct option
Assertion [A]: For toxicity testing, transgenic animals are made to carry genes which make them more sensitive to toxic substance.
Reason [R]: Transgenic animals are exposed to toxic substances to study the effect of these toxins.

sir kindly tell in this if both these satements are correct reason explains assertion

Q. During serological test in which anti-human serum is mixed with blood of another animal, blood of which animal gives the thickest precipitate?

1. Gibbon
2. Chimpanzee
3. Dog
4. Mule

Q. Regarding assertion and reason, choose the correct option
Assertion [A]: For toxicity testing, transgenic animals are made to carry genes which make them more sensitive to toxic substance.
Reason [R]: Transgenic animals are exposed to toxic substances to study the effect of these toxins.

1. Both A and R are correct and R explains A
2. Both A and R are correct and R does not explain A
3. A is correct but R is incorrect
4. Both A and R are incorrect