Biology

9th

grade

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DNA & RNA Structure

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12 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt

    The nucleus contains DNA. Which statement BEST describes how DNA controls the working of the cell?

    It codes for proteins.

    It inhibits division of cells.

    It helps in energy transformation.

    It regulates traffic in and out of the cell.

  • 2. Multiple Choice
    45 seconds
    1 pt

    DNA molecules contain the genetic information that determines the characteristics of a living organism. How do DNA molecules express the genetic information they contain?

    by breaking down proteins within the cell

    by directing the process of protein synthesis

    by regulating the storage of cellular proteins

    by controlling the movement of protein molecules

  • 3. Multiple Choice
    45 seconds
    1 pt

    Which part of a DNA molecule represents encoded information?

    phosphate

    sugar

    guanine

    hydrogen bond

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