Which is an example of a second messenger?

a. protein kinase A
b. an ion channel
c. cyclic AMP
d. GABA
e. insulin


c

Biology & Microbiology

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Incomplete penetrance indicates that individuals who possess a dominant trait always express the trait

Indicate whether the statement is true or false

Biology & Microbiology

Bile is ____

a. an enzyme that digests fat b. made in the gallbladder c. stored in the liver d. a mix of salts, pigments, and cholesterol e. necessary for protein digestion

Biology & Microbiology

Which of the following is not found in tobacco smoke?

A. benzo[a]pyrene B. vinyl chloride C. N-nitrosonornicotine D. mutagens E. asbestos

Biology & Microbiology

If a son expresses an X-linked recessive gene, he inherited the trait from ____

a. his mother b. his father c. both parents d. neither parent e. his grandmother

Biology & Microbiology