MBIO 3401 EXAM SAMPLE QUESTIONS AND
ANSWERS | WITH COMPLETE SOLUTION
What is another name for the Embden-Meyerhof-Parnas pathway?
Glycolysis
Where does viral replication occur and what are the steps of viral replication?
Intracellularly.
Steps:
1. attachment
2. ENTRY (must occur before replication)
3. replication & transcription
4. assembly
5. release
What mate would transfer chromosomal genes most frequently?
Hfr x F- (a special type of F+ that requires DNA replication because the plasmid is integrated
into the chromosome)
Louis Pasteur
1. Pasteurization
2. Swam Neck Experiment
3. Refuted the theory of spontaneous generation
Hfr strains of Escherichia coli contain __________?
An integrated F factor.
, An enveloped virus obtains lipids from ________ and the proteins are encoded by
__________.
The host's cell membrane, viral genes
What do retroviruses and ssRNA (-) primarily infect?
Animals
Which is an example of one codon?
literally whatever is only 3 letters. Ex. CAG
Why is the Gram stain important in microbiology?
It differentiates bacterial cells with different types of cell walls. Gram-positive: thicker
peptidoglycan layer; purple/blue color. Gram-negative: thinner peptidoglycan layer; red/pink
color.
What type of regulator(s) specifically binds to operator regions of DNA?
repressors
In the process of transcription, promoters are specific sequences of _________ that are
recognized by ________.
DNA, sigma factors
When two different influenza viruses infect the same cell, their segmented genomes can
undergo reassortment, resulting in ________.
antigenic shift (generates hybrid virions that express a unique set of surface proteins
unrecognized by the immune system)
ANSWERS | WITH COMPLETE SOLUTION
What is another name for the Embden-Meyerhof-Parnas pathway?
Glycolysis
Where does viral replication occur and what are the steps of viral replication?
Intracellularly.
Steps:
1. attachment
2. ENTRY (must occur before replication)
3. replication & transcription
4. assembly
5. release
What mate would transfer chromosomal genes most frequently?
Hfr x F- (a special type of F+ that requires DNA replication because the plasmid is integrated
into the chromosome)
Louis Pasteur
1. Pasteurization
2. Swam Neck Experiment
3. Refuted the theory of spontaneous generation
Hfr strains of Escherichia coli contain __________?
An integrated F factor.
, An enveloped virus obtains lipids from ________ and the proteins are encoded by
__________.
The host's cell membrane, viral genes
What do retroviruses and ssRNA (-) primarily infect?
Animals
Which is an example of one codon?
literally whatever is only 3 letters. Ex. CAG
Why is the Gram stain important in microbiology?
It differentiates bacterial cells with different types of cell walls. Gram-positive: thicker
peptidoglycan layer; purple/blue color. Gram-negative: thinner peptidoglycan layer; red/pink
color.
What type of regulator(s) specifically binds to operator regions of DNA?
repressors
In the process of transcription, promoters are specific sequences of _________ that are
recognized by ________.
DNA, sigma factors
When two different influenza viruses infect the same cell, their segmented genomes can
undergo reassortment, resulting in ________.
antigenic shift (generates hybrid virions that express a unique set of surface proteins
unrecognized by the immune system)
