Biology

9th -

12thgrade

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Quick 10Q: DNA Experiments

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Griffith investigated R and S strains with mice. What did he conclude about the S strain and the R strain in the trial with heat-killed S strain and living R strain?

    The mouse lived as the R strain provided protection from the nonliving S strain.

    The mouse died as the R strain did not provide protection from the nonliving S strain.

    The mouse lived as the R strain was not affected by a transforming agent released from the nonliving S strain.

    The mouse died as the R strain was affected by a transforming agent released from the nonliving S strain

  • 2. Multiple Choice
    30 seconds
    1 pt

    What was the difference between the R and S strains in the Griffith experiment?

    R strain was pathogenic while S strain was not pathogenic

    R strain was not pathogenic while S strain was pathogenic

    R strain had antibodies against the S strain

    S strain had antibodies against the R strain

  • 3. Multiple Choice
    30 seconds
    1 pt

    What technology did Rosalind Franklin use to produce the image of the DNA molecule used by Watson & Crick?

    X-ray crystallography

    Electron microscope

    Light microscope

    NMR

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