CHAPTER 9 MICROBIAL GENETICS
TESTING EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS /ALREADY
GRADED A+
What is the main event of transcription termination - CORRECT ANSWER ✔✔-
RNA polymerase reaches a terminator region
In general, a strand of RNA made from DNA is called an RNA... - CORRECT
ANSWER ✔✔- transcript
True or false: Several codons code for the same amino acid, which is called
redundancy of the code. - CORRECT ANSWER ✔✔- true
Which is the main event of translation? - CORRECT ANSWER ✔✔- mRNA binds
to the ribosome
During protein synthesis, many copies of a specific...can be synthesized from a
single mRNA transcript. - CORRECT ANSWER ✔✔- protein
Which DNA sequences are found within a gene but do not encode the protein
specified by that gene? - CORRECT ANSWER ✔✔- introns
1
,...are DNA sequences which encode for functional proteins. - CORRECT
ANSWER ✔✔- exons
The ... DNA strand is the strand that is not directly used for transcription into
mRNA during protein synthesis. - CORRECT ANSWER ✔✔- nontemplate
The process of transcription ... results in the release of a completed RNA transcript
- CORRECT ANSWER ✔✔- termination
True or False: A RNA template is a strand of RNA made from DNA - CORRECT
ANSWER ✔✔- False
In Eukaryotes, which DNA sequences encode functional protein? - CORRECT
ANSWER ✔✔- exons
Which is the main event of transcription termination? - CORRECT ANSWER
✔✔- RNA polymerase reaches a terminator region
Transposable elements are capable of moving from ... - CORRECT ANSWER
✔✔- The chromosome to a plasmid, one site in the chromosome to another site in
the chromosome, and a plasmid to the chromosome.
An insertion sequence consists of only two genetic elements: - CORRECT
ANSWER ✔✔- DNA encoding enzymes for transposition and tandem repeats
... is the process of decoding the mRNA into a polypeptide. - CORRECT
ANSWER ✔✔- Translation
2
, The process of bacteria turning on or off a group of genes that changes its
phenotype in a heritable manner is called...... - CORRECT ANSWER ✔✔- phase
variation
The pyrimidine nitrogenous bases found in DNA are thymine and ... - CORRECT
ANSWER ✔✔- Cytosine
The binding of lactose to the lactose repressor protein causes the repressor to leave
the operator region. This happens because lactose... - CORRECT ANSWER ✔✔-
induces a conformation change in the protein.
The ability of Neisseria gonorrhoeae strains to produce attachment ... is an example
of phase variation - CORRECT ANSWER ✔✔- fimbriae
A recombinant is defined as an organism that... - CORRECT ANSWER ✔✔-
contains and expresses genes that originated in another organism.
Which enzyme transcribes DNA into RNA? - CORRECT ANSWER ✔✔- RNA
polymerase
Which is the main event of translation elongation? - CORRECT ANSWER ✔✔-
Amino acids are joined by peptide bonds.
True or false: A point mutation results from an insertion or deletion of nucleotides,
and always leads to a shift of the triplet sequence from the point of mutation
downstream. - CORRECT ANSWER ✔✔- False
3
TESTING EXAM QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100%
CORRECT ANSWERS /ALREADY
GRADED A+
What is the main event of transcription termination - CORRECT ANSWER ✔✔-
RNA polymerase reaches a terminator region
In general, a strand of RNA made from DNA is called an RNA... - CORRECT
ANSWER ✔✔- transcript
True or false: Several codons code for the same amino acid, which is called
redundancy of the code. - CORRECT ANSWER ✔✔- true
Which is the main event of translation? - CORRECT ANSWER ✔✔- mRNA binds
to the ribosome
During protein synthesis, many copies of a specific...can be synthesized from a
single mRNA transcript. - CORRECT ANSWER ✔✔- protein
Which DNA sequences are found within a gene but do not encode the protein
specified by that gene? - CORRECT ANSWER ✔✔- introns
1
,...are DNA sequences which encode for functional proteins. - CORRECT
ANSWER ✔✔- exons
The ... DNA strand is the strand that is not directly used for transcription into
mRNA during protein synthesis. - CORRECT ANSWER ✔✔- nontemplate
The process of transcription ... results in the release of a completed RNA transcript
- CORRECT ANSWER ✔✔- termination
True or False: A RNA template is a strand of RNA made from DNA - CORRECT
ANSWER ✔✔- False
In Eukaryotes, which DNA sequences encode functional protein? - CORRECT
ANSWER ✔✔- exons
Which is the main event of transcription termination? - CORRECT ANSWER
✔✔- RNA polymerase reaches a terminator region
Transposable elements are capable of moving from ... - CORRECT ANSWER
✔✔- The chromosome to a plasmid, one site in the chromosome to another site in
the chromosome, and a plasmid to the chromosome.
An insertion sequence consists of only two genetic elements: - CORRECT
ANSWER ✔✔- DNA encoding enzymes for transposition and tandem repeats
... is the process of decoding the mRNA into a polypeptide. - CORRECT
ANSWER ✔✔- Translation
2
, The process of bacteria turning on or off a group of genes that changes its
phenotype in a heritable manner is called...... - CORRECT ANSWER ✔✔- phase
variation
The pyrimidine nitrogenous bases found in DNA are thymine and ... - CORRECT
ANSWER ✔✔- Cytosine
The binding of lactose to the lactose repressor protein causes the repressor to leave
the operator region. This happens because lactose... - CORRECT ANSWER ✔✔-
induces a conformation change in the protein.
The ability of Neisseria gonorrhoeae strains to produce attachment ... is an example
of phase variation - CORRECT ANSWER ✔✔- fimbriae
A recombinant is defined as an organism that... - CORRECT ANSWER ✔✔-
contains and expresses genes that originated in another organism.
Which enzyme transcribes DNA into RNA? - CORRECT ANSWER ✔✔- RNA
polymerase
Which is the main event of translation elongation? - CORRECT ANSWER ✔✔-
Amino acids are joined by peptide bonds.
True or false: A point mutation results from an insertion or deletion of nucleotides,
and always leads to a shift of the triplet sequence from the point of mutation
downstream. - CORRECT ANSWER ✔✔- False
3
