Question

11)Who first demonstrated horizontal transmission of genetic information?

A. Oswald Avery

B. Frederick Griffith
C. Barbara McClintock
D. Thomas Hunt Morgan

12) DNA strands are often denatured in the laboratory using which method?

A. adding restriction enzymes

B. freezing the sample

C. raising the temperature

D. using a cold calcium chloride solution

13) Which process produces an RNA copy of a DNA molecule?

A. replication

B. transcription
C. transformation
D. translation
14) Which best describes the mitochondrial DNA chromosome?

A. It is circular.

B. It is identical to chloroplast DNA.

C. It is viral.

D. It lacks thymine.

15) DNA polymerase III adds DNA nucleotides in which of the following direction(s)?

A. in the 3′ to 5′ direction only
B. in the 3′ to 5′ direction and in 5′ to 3′ direction

C. in the 5′ to 3′ direction on one strand and in the 3′ to 5′ direction on the complementary strand
D. in the 5′ to 3′ direction only

16) Which describes one difference between prokaryotic and eukaryotic DNA replication?

A. Eukaryotes have more origins of replication than prokaryotes.

B. The chromosomes are usually circular in eukaryotes and usually linear in prokaryotes.

C. The DNA is not tightly complexed with histones in eukaryotes.

D. The RNA primer is removed by ribonuclease H instead of a DNA polymerase I in prokaryotes

17) A particular genotype always produces the same phenotype.

True

False

18) Which of the following is an example of a nosocomial disease?

A. acquiring Giardia while drinking from a stream during a camping trip

B. acquiring Listeria after eating at a public restaurant

C. acquiring MRSA after touching a locker door handle after an already infected individual did so

D. obtaining a Pseudomonas respiratory infection during a recent visit to the hospital

19) What period of disease describes when the patient begins to feel general signs and symptoms?

A. incubation period

B. period of convalescence

C. period of illness

D. prodromal period