Bio 2010 - Microbiology » Summer 2021 » Chapter 7 Quiz

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Question #1
This term refers to the complete genetic makeup of an organism.
A.   genotype
B.   genome
C.   phenotype
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 mRNA in the 5’ to 3’ 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
The transfer of genes from one cell to another by a bacteriophage is known as __________________
A.   Recombination
B.   Transformation
C.   Transduction
D.   Conjugation
Question #4
The enzyme required for transcription is called:
A.   RNAse
B.   restriction enzyme
C.   DNA polymerase
D.   RNA polymerase
Question #5
The site to which the tRNA molecule binds to on a corresponding mRNA molecule is called:
A.   promoter
B.   anticodon
C.   operator
D.   codon
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.   Neither lactose and glucose are metabolized.
C.   Lactose metabolism is favored
D.   Lactose operon is not transcribed
Question #7
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 amino acid sequence would remain unchanged.
C.   the identity of one amino acid would change
D.   the amino acid sequence would be shorter than expected
Question #8
The transfer of naked DNA from one cell to another is referred to as _______________.
A.   Lysogeny
B.   Transformation
C.   Conjugation
D.   Transduction
Question #9
What is the main function of tRNA in relation to protein synthesis?
A.   inhibits protein synthesis
B.   it proof reads and edits
C.   identifies amino acids and transports them to ribosomes
D.   all of the above
Question #10
This protein is produced by a regulatory gene:
A.   operon
B.   inducer
C.   repressor
D.   promoter

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