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.
deoxyribonucleic acid
B.
genome
C.
phenotype
D.
genotype
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 3’ to 5’ direction
C.
It can synthesize DNA in the 5’ to 3’ 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.
inhibits protein synthesis
C.
all of these
D.
it proof reads and edits
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 amino acid sequence would remain unchanged.
C.
the identity of one amino acid would change
D.
the identity of more than one amino acid would change
Question #5
The enzyme required for transcription is called:
A.
restriction enzyme
B.
RNA polymerase
C.
DNA polymerase
D.
RNAse
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.
Neither lactose and glucose are metabolized.
C.
Lactose operon is not transcribed
D.
Both lactose and glucose are metabolized at same rate
Question #7
This protein is produced by a regulatory gene:
A.
promoter
B.
inducer
C.
operon
D.
repressor
Question #8
The transfer of genes from one cell to another by a bacteriophage is known as __________________
A.
Recombination
B.
Conjugation
C.
Transformation
D.
Transduction
Question #9
The transfer of naked DNA from one cell to another is referred to as _______________.
A.
Conjugation
B.
Lysogeny
C.
Transformation
D.
Transduction
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