Biology: Concepts and Connections, 6e (Campbell)
Chapter 12
DNA Technology and Genomics

Multiple-Choice Questions

1)
When DNA fingerprinting was first used, A) genetic evidence was collected using only DNA from blood. B) blood samples from theGenomic libraries can be constructed using either bacterial plasmids or what other vector? crime scene were used to match the blood of a person who confessed. C) the two semen samples did not match the person who initially confessed. D) genetic testing revealed that the two murdered girls were killed by two different people. E) the DNA evidence was not convincing enough to convict the suspect. Answer:
C
Topic:
Opening
B) cut DNA at specific sites. C) stop transcription. D) bind together strands of DNA. E) bind RNA fragments together. Answer:
B
Topic:
12.2
Skill:
Factual Recall

10)
Restriction enzymes specifically recognize and cut short sequences of DNA called A) promoter sequences. B) short terminal repeats. C) sticky ends. D)
DNA fragments. E) restriction sites. Answer:
E
Topic:
12.2
Skill:
Factual Recall

11)
"Sticky ends" are A) produced by the action of DNA ligase. B) produced by PCR. C) always long sequences of a single nucleotide. D) used by mRNA to attach to ribosomes. E)
DNA fragments with single-stranded ends. Answer:
E
Topic:
12.2
Skill:
Factual Recall

12)
The feature of "sticky ends" that makes them especially useful in DNA recombination is their ability to A) bind to DNA and thereby activate transcription. B) bind to ribosomes and thereby activate translation. C) form hydrogen-bonded base pairs with complementary single-stranded stretches of DNA. D) allow plasmids to attach to the main bacterial chromosome. E) insert a segment of RNA into a bacterial chromosome. Answer:
C
Topic:
12.2
Skill:
Conceptual Understanding

13)
DNA fragments that have