Bio 2010 - Microbiology » Spring 2023 » Chapter 7 Quiz
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Question #1
This term refers to the complete genetic makeup of an organism.
A.
phenotype
B.
genome
C.
genotype
D.
deoxyribonucleic acid
Question #2
Which of the following is true about DNA polymerase?
A.
It can synthesize DNA in the 3’ to 5’ direction
B.
It can synthesize DNA in the 5’ to 3’ direction.
C.
It can synthesize mRNA in the 3’ to 5’ direction.
D.
It can synthesize mRNA in the 5’ to 3’ direction.
Question #3
What is the main function of tRNA in relation to protein synthesis?
A.
inhibits protein synthesis
B.
it proof reads and edits
C.
all of these
D.
identifies amino acids and transports them to ribosomes
Question #4
Which of the following changes would be expected if a CAUUUG sequences of bases mutated to CACUUG?
A.
the amino acid sequence would be shorter than expected
B.
the identity of one amino acid would change
C.
the identity of more than one amino acid would change
D.
the amino acid sequence would remain unchanged.
Question #5
The enzyme required for transcription is called:
A.
RNAse
B.
restriction enzyme
C.
DNA polymerase
D.
RNA polymerase
Question #6
If lactose and glucose are provided in the growth medium of a culture of Escherichia coli then:
A.
Lactose metabolism is favored
B.
Lactose operon is not transcribed
C.
Both lactose and glucose are metabolized at same rate
D.
Neither lactose and glucose are metabolized.
Question #7
This protein is produced by a regulatory gene:
A.
repressor
B.
inducer
C.
operon
D.
promoter
Question #8
The transfer of genes from one cell to another by a bacteriophage is known as __________________
A.
Transformation
B.
Conjugation
C.
Transduction
D.
Recombination
Question #9
The transfer of naked DNA from one cell to another is referred to as _______________.
A.
Conjugation
B.
Transformation
C.
Transduction
D.
Lysogeny
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