18 Questions
What is the purpose of regulating gene expression in bacteria?
To save cell energy by only producing necessary proteins
Which of the following is NOT a level of gene regulation in bacteria?
Ribosomal RNA replication
Which proteins are considered constitutive in bacteria?
RNA polymerase
What do some microbes do to activate or disable a particular gene?
Alter the DNA sequence
What is the function of autoinducers in bacterial gene regulation?
Turn on genes for group behaviors
How do bacteria sense changes in cell density?
Through autoinducers
Which process can help bacteria adjust to changing environmental conditions?
Regulation of gene expression
What is the role of Quorum Sensing in regulating gene expression in bacteria?
Regulating gene expression based on cell population density
What is a mutation in the context of bacterial gene expression?
A change in DNA sequence
What is one way bacteria regulate protein levels post-translationally?
Modifying protein activity or folding
Which mechanism reduces the frequency of errors during DNA replication in bacteria?
DNA repair mechanisms
How can genetic changes bring about new traits or functions in bacteria?
Via horizontal gene transfer
What type of mutation results in a frameshift, causing the encoded peptide sequence to be different from that point onward?
Insertions
Which type of mutation typically results in a nonfunctional MEERKAT protein, acting like a 'knock-out' mutation?
Insertions/Deletions
In the context of mutations, what outcome is associated with an inversion of coding genes?
Missense Mutations
If mutant 2 experiences a reversion, what might this reversal look like?
A deletion of a base leading to a frameshift mutation
Which kind of mutation can result in inactivating the gene product, similar to a null mutation?
Nonsense Mutation
Considering DNA repair mechanisms and replication accuracy, why are some mutations still passed on to daughter cells?
DNA repair does not fix all mistakes before the next round of replication
Test your knowledge on bacterial genetics and biotechnology with a quiz covering topics like genomes, DNA replication, bacterial gene expression, regulation of gene expression in bacteria, mutations, and DNA repair.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
