Could You Pass This Hardest Microbiology Exam? Quiz

58 Questions | Total Attempts: 1257

SettingsSettingsSettings
Please wait...
Could You Pass This Hardest Microbiology Exam? Quiz

If you come across something that you see as hard or others identify as hard and pass by it so coolly, then you indeed will have no issues when it comes to something they see as small. Below is what is considered the hardest microbiology exam and is derived from your notes and book in chapter 8. Think you can pass it?


Questions and Answers
  • 1. 
    Diversity in a bacteria can be generated via..
    • A. 

      Mutation

    • B. 

      Natural selection

    • C. 

      Gene transfer

  • 2. 
    Modification in the sequence of DNA is a gene often resulting in an alteration in the protein encoded gene is known as..
    • A. 

      Diversity in Bacteria

    • B. 

      Mutation

    • C. 

      Spontaneous Mutation

    • D. 

      Induced Mutation

  • 3. 
    Define Mutation
    • A. 

      Is a change in the existing nucleotide sequence of a cell's DNA which is then passed on to daughter cells

    • B. 

      Bacteria have two general means by which they routinely adjust to new circumstances

    • C. 

      Is the acquistion of genes from another organism

  • 4. 
    What are mutations that occur in the cell's natural environment
    • A. 

      Induced Mutation

    • B. 

      Envrionmental Mutations

    • C. 

      Spontaneous Mutations

  • 5. 
    Spontaneous Mutations are...
    • A. 

      Mutation passed onto progeny: inherited

    • B. 

      Mutations are stable inheritable changes in the base sequence of DNA

    • C. 

      Change in a cell's genotype and phenotype to its orgignal state through a change in the mutated gene

  • 6. 
    Vertical gene transfer
    • A. 

      Transfer of gene

    • B. 

      Mutation passed onto progeny: inherited

    • C. 

      Chagne in a cell's genotype and phenotype to its original state through a change in the mutated gene

  • 7. 
    Reversion are...
    • A. 

      Change in a cell's genotype and phenotype to its original state through a change in the mutated gene

    • B. 

      When the cell reverse

    • C. 

      Mutation passed onto progeny; inherited

  • 8. 
    Spontaneous mutation can occur as a result of what?...
    • A. 

      Base substitution

    • B. 

      Acid

    • C. 

      Removal or addition of nucleotides

    • D. 

      Transposable elements

    • E. 

      A, C, D are correct

  • 9. 
    Base Substitution are.
    • A. 

      Most common type of mutation

    • B. 

      Results from mistakes during DNA synthesis

    • C. 

      Shifts the translational reading frame

    • D. 

      A and B are correct

    • E. 

      A, B, and C are correct

  • 10. 
    Point Mutations
    • A. 

      Occur when on base pair is changed

    • B. 

      Mutation resulting fromamino acid substitution

    • C. 

      Mutation that changes an amino acid codon to a stop codon

    • D. 

      Mutations that inactivates a gene results in a strain that is unable to grow

  • 11. 
    Missense mutation
    • A. 

      Occur when one base pair is changed

    • B. 

      Mutation resulting from amino acid substitution

    • C. 

      Mutation that changes an amino acid codon to a stop codon

    • D. 

      Mutation that inactivates a gene results in a strain that is unable to grow

  • 12. 
    Nonsense mutation
    • A. 

      Occur when one base pari is changed

    • B. 

      Mutation resulting from amino acid substituiton

    • C. 

      Mutation that chagnes an amino acid codon to a stop codon

    • D. 

      Mutation that inactivates a gene results in a strain that is unable to grow

  • 13. 
    Null or knockout mutation
    • A. 

      Occur when one basepair is changed

    • B. 

      Mutation resulting from amino acid substitution

    • C. 

      Mutation that changes an amino acid codon to a stop codon

    • D. 

      Mutation that inactivates a gene results in a strain that is unable to grow

  • 14. 
    What does the removal or addition of Nucleotides do?
    • A. 

      Shifts the translation reading frame

    • B. 

      Causes a frameshift mutation

    • C. 

      Shifts the codons of the DNA when it is transcribed into mRNA

    • D. 

      All of the above are correct

    • E. 

      None of the above are correct

  • 15. 
    What are the effects of a frameshift mutation?
    • A. 

      Affects all amino acids downstream from addition or deletion (mutations frequently result in premature stop codons)

    • B. 

      Changes the reading frame, so that an entirely different set of codons is used

    • C. 

      Results in a protein that is truncated and probably non-fucntionl- (a knockout mutation)

    • D. 

      All of the above are correct

    • E. 

      None of the above is correct

  • 16. 
    What are transposable elements
    • A. 

      Special segments of DNA that move spontaneoulsy from gene to gene

    • B. 

      The deletion or additon of nucleotides, which may occur in the courseof DNA replication, is another type of spontaneous mutation

    • C. 

      Jumping JACK FLASH

  • 17. 
    Another name for Transposable elements
    • A. 

      Insertional inactivation

    • B. 

      Transposons

    • C. 

      Transposition

    • D. 

      Roc nations in the building throw your dynasty sign

    • E. 

      Imma star

  • 18. 
    What happens to the gene after transposon inserts..
    • A. 

      Nothing

    • B. 

      It no longer encodes a functional protein because the insertion disrupts the gene

    • C. 

      Disrupt proper function of gene, gene or gene product generally non-functional

    • D. 

      Only B and C are correct

    • E. 

      Gene become alive

  • 19. 
    What are induced mutations?
    • A. 

      Modification of purines and pyrimidines

    • B. 

      Altered base pairing properties

    • C. 

      I gotta give a game proper spit it so she get it...

    • D. 

      Mutations essentialf or understanding genetics, mutations can be intentioanlly produced to demonstrate function of particular gene or set of gene (mutation induced)

    • E. 

      One of the above are correct

  • 20. 
    Mutations can be induced via...
    • A. 

      Chemical

    • B. 

      Transposition

    • C. 

      Radiation

    • D. 

      All of the above are correct

    • E. 

      Shorty grap hold of my hand pretend the floor was ours

  • 21. 
    Define chemical Mutagens
    • A. 

      I wanna be where you are ain't nothing wrong with dancing baby its so romantic...

    • B. 

      Any chemical treatment that alters the hydrogon-bonding properties of a purine or pyrimidine base in the DNA will increase the frequency of mutations as the DNA replicates

    • C. 

      Chemicals that are structurally similar to the nitrogenous bases but have slightly altered base pairing properties (base subsitution)

    • D. 

      Mutations can be intentionally produced to demonstrate function of particular gene or set of gene

    • E. 

      Molecules that insert themselves between adjacent bases

  • 22. 
    What are Base Analogs...
    • A. 

      Nobody wants to be alone if you're touched by the words of the song

    • B. 

      Intercalating agents

    • C. 

      Causes covalent bonding between adjacent thymine bases

    • D. 

      Opposite of Acid Analog

    • E. 

      Chemicals that are structurally similar to the nitrogenous bases but have slightly altered base pairing properties (base substitution)

  • 23. 
    What are intercalating agents?
    • A. 

      Agents of gene products that are generally non-functional

    • B. 

      Molecules that insert themselves between adjacent bases, increases the frequency of frameshift mutation

    • C. 

      Another type of secret agent

    • D. 

      The biggest group of chemical mutagens consists of alkylating agents

  • 24. 
    What is a common intercalating agent?
    • A. 

      Put my number on your phone

    • B. 

      Purines

    • C. 

      Pyrimidines

    • D. 

      Hydrogen

    • E. 

      Ethidium bromide

  • 25. 
    Characteristic of Ethidium Bromide
    • A. 

      Potential carcinogen

    • B. 

      Used to stain DNA in gel electrophoresis

    • C. 

      A and B are both correct

    • D. 

      None of the above is correct

Back to Top Back to top