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DNA & RNA

Quiz by Ashley

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50 questions
Show answers
  • Q1
    Avery’s experiments showed that bacteria are transformed by...
    RNA.
    proteins.
    DNA.
    carbohydrates.
    30s
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  • Q2
    What did Griffith observe when he injected a mixture of heat-killed, disease-causing bacteria and live harmless bacteria into mice?
    The harmless bacteria died.
    The mice developed pneumonia.
    The disease-causing bacteria changed into harmless bacteria.
    The mice were unaffected.
    30s
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  • Q3
    What would Hershey and Chase have concluded if both radioactive 32P and 35S were found in the bacteria in their experiment?
    The virus’s protein coat was not injected into the bacteria.
    The virus’s DNA was not injected into the bacteria.
    Genes are made of protein.
    Both the virus’s protein coat and its DNA were injected into the bacteria.
    30s
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  • Q4
    The figure above shows the structure of a(an)
    Question Image
    DNA molecule.
    amino acid.
    protein.
    RNA molecule.
    30s
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  • Q5
    Which of the following is a nucleotide found in DNA?
    deoxyribose + phosphate group + uracil
    deoxyribose + phosphate group + cytosine
    ribose + phosphate group + uracil
    ribose + phosphate group + thymine
    30s
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  • Q6
    Because of base pairing in DNA, the percentage of
    cytosine molecules in DNA is much greater than the percentage of guanine molecules.
    pyrimidines in DNA is about equal to the percentage of purines.
    purines in DNA is much greater than the percentage of pyrimidines.
    30s
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  • Q7
    In eukaryotes, DNA
    is located in the nucleus.
    is circular.
    is located in the ribosomes.
    floats freely in the cytoplasm.
    30s
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  • Q8
    Which of the following include all the others?
    DNA molecules
    chromosomes
    nucleosomes
    histones
    30s
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  • Q9
    DNA is copied during a process called
    transformation.
    translation.
    replication.
    transcription.
    30s
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  • Q10
    DNA replication results in two DNA molecules,
    each with two new strands.
    one with two new strands and the other with two original strands.
    each with one new strand and one original strand.
    each with two original strands.
    30s
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  • Q11
    RNA contains the sugar
    lactose.
    glucose.
    ribose.
    deoxyribose.
    30s
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  • Q12
    Unlike DNA, RNA contains
    thymine.
    adenine.
    uracil.
    phosphate groups.
    30s
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  • Q13
    Which of the following are found in both DNA and RNA?
    phosphate groups, guanine, and thymine
    ribose, phosphate groups, and adenine
    phosphate groups, guanine, and cytosine
    deoxyribose, phosphate groups, and guanine
    30s
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  • Q14
    What is produced during transcription?
    DNA molecules
    Proteins
    RNA polymerase
    RNA molecules
    30s
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  • Q15
    During transcription, an RNA molecule is formed
    inside the nucleus.
    that is identical to part of a single strand of DNA.
    that is complementary to both strands of DNA.
    that is double-stranded.
    30s
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  • Q16
    How many bases are needed to specify three amino acids?
    6
    12
    9
    3
    30s
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  • Q17
    Why is it possible for an amino acid to be specified by more than one kind of codon?
    Some codons do not specify an amino acid.
    Some codons have the same sequence of nucleotides.
    The codon AUG codes for the amino acid methionine and serves as the “start” codon for protein synthesis.
    There are 64 different kinds of codons but only 20 amino acids.
    30s
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  • Q18
    What happens during the process of translation?
    Copies of DNA molecules are made.
    The cell uses information from messenger RNA to produce proteins.
    Messenger RNA is made from DNA.
    Transfer RNA is made from messenger RNA.
    30s
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  • Q19
    Genes contain instructions for assembling
    purines.
    nucleosomes.
    pyrimidines.
    proteins.
    30s
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  • Q20
    Which type of RNA functions as a blueprint of the genetic code?
    rRNA
    tRNA
    mRNA
    RNA polymerase
    30s
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