Which of the following molecules act as building blocks (monomers) of polypeptides?
A) 1, 4, and 6
B) 2, 7, and 8
C) 7, 8, and 13
D) 11, 12, and 13
E) 12, 13, and 15
Answer: B
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Which is the predominant second messenger involved in regulating glucose metabolism?
a. insulin b. glucagon c. adenyl cyclase d. cyclic AMP e. G protein
Mitochondrial inner membrane transmembrane proteins are inserted into the inner membrane
a. directly from the matrix into the lipid bilayer. b. through Tim. c. through Tim and Tom. d. through a transporter called Oxa1.
In poultry, the genes for rose comb (R) and pea comb (P) produce walnut whenever they occur together (R__ P__); single-combed individuals have the homozygous condition for both genes (rr pp). Give the phenotypic results of a cross of Rr Pp x rr Pp
A. 9/16 walnut, 3/16 rose, 3–16 pea, 1/16 single B. 3/8 walnut, 3/8 pea, 1/8 rose, 1/8 single C. 3/4 walnut, 1/4 rose D. 1/4 walnut, 1/4 rose, 1/4 pea, 1/4 single E. 1/4 walnut, 1/4 rose, 1/4 pea, 1/4 single
________ is an important component of many biological molecules, including the genetic material DNA and energy transfer molecules such as ATP
Fill in the blank(s) with correct word