Which of the following protein classes are not found as membrane proteins?
A. transport channels
B. hormones
C. receptors
D. enzymes
E. identity markers
B
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Davis, Weintraub, and Lasser found three genes that are involved in muscle differentiation by
A. eliminating all the gene candidates that were expressed in both muscle and nonmuscle cells. B. finding all the genes that were expressed in common between two different muscle cell lines. C. cloning all the genes that were expressed only in muscle cell lines to determine if any of these genes could cause non-muscle cells to differentiate into muscle cells. D. mutating genes expressed only in muscle cells to see if differentiation could be prevented.
Mating a pure-bred pink rose plant with a pure-bred pink rose plant will produce:a
plants with pink, red, and white roses. b. plants with only pink roses. c. plants with red or white roses in a 3:1 ratio. d. plants with white or red roses in a 3:1 ratio. e. plants with only red roses.
The water strider is an insect that skates across the water without sinking. The tips of its feet must be coated with molecules that are
What will be an ideal response?
Which of the following is NOT typically treated with penicillin?
A) serious wounds at risk for gas gangrene B) tularemia C) patients at risk for rheumatic fever D) puerperal sepsis E) rat-bite fever