Question

If rDNA is introduced in a gene coding for ampicillin resistance, then

• A. The host will lose resistance to ampicillin.
• B. The host will become resistant to ampicillin.
• C. The host will start producing tetracycline.
• D. The host will start producing ampicillin.

Answer 1

The correct option is A

The host will lose resistance to ampicillin.

The correct option is A

Explanation of the correct option:

1. Recombinant DNA is rDNA.
2. The host will lose its resistance to ampicillin if it is put into a gene that codes for ampicillin resistance because the gene will become inactive.
3. Recombinant DNA (rDNA) technology describes the procedure of fusing DNA molecules from two distinct sources and putting them into a host organism to produce goods for human consumption.
4. We can identify which E. coli cells have undergone transformation based on their propensity to thrive in an ampicillin-containing environment thanks to the ampicillin-resistance gene.

Final answer: If rDNA is introduced in a gene coding for ampicillin resistance, then the host will lose resistance to ampicillin.