Multiple Choice
In Cohen and Boyer's pioneering studies in recombinant DNA, what was the role of antibiotic resistance genes?
A) They were selective markers.
B) They were vectors.
C) They were replicons.
D) They were transgenic agents.
E) They made the host cells more likely to take up the foreign DNA.
Correct Answer:

Verified
Correct Answer:
Verified
Q52: The sequence 5ʹ-GATATT-3ʹ is not a palindromic
Q53: Refer to the table showing results from
Q54: What was the original source of the
Q55: Complementary single-stranded RNA<br>A) forms hybrids with mRNA
Q56: Bacteria are not particularly useful as hosts
Q58: Refer to the table showing results from
Q59: Refer to the table.A gene might affect
Q60: A biologist tries to produce many copies
Q61: Biologists examining the plant gene LEAFY's effect
Q62: In transgenic experiments researchers often make use