Which scientist(s) discovered the basis for the
base-pair rule, which states that the amounts of
adenine and thymine match, as do the amounts
of cytosine and guanine?
a. Avery
b. Griffith
c. Chargaff
d. Hershey and Chase
e. Pauling
C
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Which of the following statements are true regarding heavy (H) chains? Select all correct choices
A. Antibodies contain two heavy chains. B. Heavy chains contain variable and constant regions. C. Heavy chains are formed by the recombination of V, J, and C gene segments. D. Heavy chains are formed by the recombination of V, J, C, and D gene segments. E. Heavy chains contain only a hypervariable region.
Each year the average human loses __________ of
skin. a. 7.6 oz. b. 1.5 kilograms c. 15 lbs. d. 1.5 lbs. e. none of the above
Deamination is a process that removes:a
the amino group from amino acids. b. the amino group from nucleic acids. c. amines from the bloodstream. d. amines from nucleic acids. e. ammonia from blood.
The field of immunology studies the immune response to various factors. What is the name of an inappropriate immune response?
A) sneezing B) autoimmunity C) fever D) infection