1. What are the four bases found in RNA?

    Adenine, thymine, uracil and guanine

    Cytosine, adenine, guanine and uracil

    Thymine, adenine, cytosine and guanine

    Uracil, guanine, thymine and cytosine

2. A single DNA molecule is described as a double helix.

    True

    False

3. The sequence of in DNA is responsible for the sequence of amino acids in proteins.

4. The complementary base of adenine in DNA is:

    uracil

    guanine

    thymine

    cytosine

5. mRNA is used to build the protein on a ribosome.

    True

    False

6. What does the 'm' stand for in mRNA?

7. Watson and Crick were responsible for the first showing the double helix model of DNA.

    True

    False

8. The order the bases appear in the DNA is called the genetic .

9. If a section of DNA contains 24,000 bases and 20% are cytosine, how many adenine bases hould there be?

    2400

    4800

    7200

    14400

10. How many bases on a mRNA molecule code for one amino acids?

    1

    2

    3

    4