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CRA Review 6

Quiz by Kevin Self

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10 questions
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  • Q1
    If an organisms activity level requires more oxygen than is available to the cells, what would happen to the rate of photosynthesis?
    Stays the same
  • Q2
    Organisms activity level requires more oxygen than is available to the cells, what would happen to the rate of cell division?
    Stays the same
  • Q3
    What is the difference in the sugars of DNA and RNA?
    There is no difference.
    DNA has ribose sugar and RNA has deoxyribose sugar.
    Both are five carbon sugar's.
    DNA has deoxyribose sugar while RNA has ribose sugar.
  • Q4
    What characteristics of DNA is unique to the individual organism?
    Shape of the DNA molecule.
    Size of each chromosome in a cell.
    Number of chromosomes in each cell.
    The sequence of DNA nucleotides in cells.
  • Q5
    Write the DNA sequence that would correctly meet up with this DNA strand. ACATGCCATAG
  • Q6
    Write the mRNA sequence that would complement this DNA strand. ACATGCCATAG
  • Q7
    DNA plays what role in protein synthesis?
    No role.
    DNA give us the directions on how to make a protein amino acid by amino acid.
    Determines the base pairing rules.
    DNA is the police force to make sure everything is orderly.
  • Q8
    What role does mRNA play in protein synthesis?
    Messenger RNA – sends the message from DNA on how to make the protein.
    mRNA transfers amino acids to the ribosomes to make the protein strand.
    Messenger RNA – sends the message to the DNA on how to make protein.
    mRNA doesn't have a specific purpose in translation/protein synthesis.
  • Q9
    What role does tRNA play in protein synthesis?
    Separates the large and small ribosomal subunits.
    tRNA transfers the correct amino acid to the ribosome for protein assembly.
    tRNA transcribes the DNA code to mRNA.
    Attaches to the rRNA.
  • Q10
    Ribosomes translate mRNA sequences into proteins. Describe the ratio in relationship between nucleotides and number of amino acids.
    One nucleotide code for one amino acid.
    Three nucleotides code for one amino acid.
    20 amino acids can make proteins.
    One nucleotide codes for three amino acids.

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