18. Biotechnology
Introduction to DNA-Based Technology
Multiple Choice
Multiple ChoiceWhen a typical restriction enzyme cuts a DNA molecule, the cuts are staggered so that the DNA fragments have single-stranded ends. This is important in recombinant DNA work because __________.
A
it allows a cell to recognize fragments produced by the enzyme
B
the single-stranded ends serve as starting points for DNA replication
C
it enables researchers to use the fragments as introns
D
only single-stranded DNA segments can code for proteins
E
the fragments will bond to other fragments with complementary single-stranded ends
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