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Chapter 12 Gene Expression and Regulation Test

Quiz by Jaime

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47 questions
Show answers
  • Q1
    The sequence of nitrogen-containing bases on one strand of DNA most directly determines the sequence of
    bases in a protein molecule.
    sugars in a polysaccharide molecule.
    fatty acids in a fat molecule
    amino acids in a protein molecule.
    60s
  • Q2
    The 'one-gene, one-enzyme' hypothesis concluded that
    DNA is transcribed into RNA, which is translated into protein.
    each allele codes for a single type of protein.
    enzymes regulate gene activity.
    specific enzymes give rise to specific genes.
    45s
  • Q3
    Which of the following is found in RNA but NOT in DNA?
    Adenine
    Uracil
    Deoxyribose
    Thymine
    45s
  • Q4
    How many consecutive mRNA bases are needed to specify an amino acid?
    3
    64
    20
    4
    45s
  • Q5
    What is the total number of different possible combinations of bases in a codon?
    4
    3
    20
    64
    45s
  • Q6
    If a bacterial protein is made from 30 amino acids, how many nucleotides are needed to code for its production?
    120
    90
    30
    600
    120s
  • Q7
    The genetic material of some viruses, such as HIV, is not DNA but is instead
    lipid
    protein
    carbohydrate
    The genetic material of some viruses, such as HIV, is not DNA but is instead
    60s
  • Q8
    Which of the following molecules functions to transfer genetic information from one generation to the next?
    DNA
    tRNA
    mRNA
    Protein molecules
    45s
  • Q9
    If the sequence of bases in a section of DNA is TAGGCTAA, what is the corresponding sequence of bases in mRNA?
    TAGGCTAA
    AUCCGAUU
    CGAAUCGG
    AATCGGAT
    60s
  • Q10
    How many bases are in a codon?
    3
    4
    64
    20
    45s
  • Q11
    The genetic code is
    different in different organisms.
    read in sets of three bases called codons.
    used during the translation of DNA to mRNA.
    a set of two base sequences coding for each amino acid.
    45s
  • Q12
    The process of copying genetic information from DNA to RNA is called
    translation
    replication
    transformation
    transcription
    45s
  • Q13
    Which of the following molecules transfers information from the nucleus to the cytoplasm?
    Lipids
    DNA
    tRNA
    mRNA
    60s
  • Q14
    The nitrogenous base uracil pairs with
    cytosine
    uracil
    adenine
    thymine
    45s
  • Q15
    How can RNA be distinguished from DNA?
    RNA does not contain a sugar.
    RNA lacks the base uracil.
    RNA is never found in the nucleus.
    RNA is single-stranded.
    45s

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