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MICRO-1420 ADAMS UNIT 4 REVIEW

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74 questions
Show answers
  • Q1
    A gene is _________________.
    a coding region of a genome.
    a protein.
    an entire set of genetic material in an organism/cell/virus.
    30s
  • Q2
    All of the following are involved in transcription except:
    Sigma factor
    Primer
    Polymerase
    Promoter
    30s
  • Q3
    All of the following are involved in DNA replication except:
    Sigma factor
    origin of replication
    DNA polymerase
    primer
    30s
  • Q4
    Without DNA ligase, cells would not be able to complete what step of replication?
    Create primers
    Stabilize DNA during replication
    Bind DNA sequences together to generate a continuous strand
    Unzip the DNA double helix
    30s
  • Q5
    What type of RNA carries and transfers amino acids?
    tRNA
    mRNA
    RNAi
    rRNA
    30s
  • Q6
    What type of RNA carries genetic information necessary to complete translations?
    rRNA
    None of these
    tRNA
    mRNA
    30s
  • Q7
    Which of the following statements is not a valid difference between prokaryotic and eukaryotic molecular biology?
    Prokaryotic DNA is typically circular while eukaryotic DNA is typically linear
    Prokaryotes are typically haploid while eukaryotes are typically diploid
    Prokaryotes have free floating ribosomes while eukaryotes have free floating and fixed ribsomes
    Transcription and translation occur in the cytoplasm in prokaryotes but not in eukaryotes
    45s
  • Q8
    Glucose and lactose are present in a lac operon scenario, is it functional, and what are the enzymes doing?
    Functional; CAP binds to cAMP, allolastose is present and binds to the repressor
    Functional; CAP does not bind to cAMP, allolactose is present and binds to the repressor
    Not functional; CAP does not bind to cAMP, allolactose is present and binds to the repressor
    Not functional; CAP binds to cAMP, allolastose is present and binds to the repressor
    45s
  • Q9
    Which of the following mutations are most likely to result in a useless protein?
    Silent
    Missense
    Frameshift
    Nonsense
    30s
  • Q10
    A sequence of DNA is composed of 18% adenine. It will contain ____% cytosine.
    28
    36
    18
    32
    30s
  • Q11
    If proof-reading fails, what is the next line of defense in repairing damaged DNA?
    SOS repair
    Light repair
    Excision repair
    30s
  • Q12
    What genetic exchange results in the donor cell remaining alive?
    Transformation
    Transduction
    Conjugation
    30s
  • Q13
    Removal of a plasmid would result in cell death in normal conditions
    True
    False
    20s
  • Q14
    What type of chemical bonds are found in the backbone of DNA?
    Ionic
    None of these
    Covalent
    Hydrogen
    30s
  • Q15
    DNA polymerase comes before DNA gyrase.
    True
    False
    30s

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