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