Which statement about the Hershey-Chase experiment is false?
A. DNA was labeled with radioactive phosphorus.
B. Protein was labeled with radioactive sulfur.
C. The virus-infected bacteria contained radioactive phosphorus.
D. The virus-infected bacteria contained radioactive sulfur.
D. The virus-infected bacteria contained radioactive sulfur.
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Antigens specifically associate with an antibody's
A. hinge region. B. heavy chain constant regions only. C. variable regions of the heavy chains and light chains combined. D. light chain variable regions only. E. tail.
An epidemic that spreads worldwide is called a(n)
A. epidemical. B. endemic. C. pandemic. D. syndemic
If each nucleotide coded for a single amino acid, how many different types of amino acids could be combined to form proteins?
a. 4 b. 16 c. 20 d. 64 e. none of these
Mud flats are typically low in organic matter
Indicate whether the statement is true or false