Biology · Biotechnology
A plasmid vector and foreign DNA are cut with EcoRI, ligated, and introduced into E. coli. Only bacteria with recombinant plasmids survive on antibiotic-containing medium. Which of the following statements/conclusions are correct? 1. Antibiotic resistance acts as a selectable marker 2. EcoRI produces compatible sticky ends 3. Transformation occurred in surviving bacteria 4. All surviving bacteria contain non-recombinant plasmids
- 11, 2 and 3 only✓
- 22 and 4 only
- 31 and 4 only
- 41, 2, 3 and 4
Correct answer
1, 2 and 3 only
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