At about pH 7 in most cells, what happens to the arnino group on an amino acid? A. It acts as a base and gains a proton, giving it a positive charge.
B. It acts as an acid and loses a proton, giving it a negative charge.
C. It is reduced and tends to act as an electron donor in redox reactions,
D. It remains neutral, like water, and does not have a charge
E. None of the above choices occurs

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

Read the scenario below and answer the question that follows. hallie is reading a novel in the library when susan, her best friend, slumps down in a chair next to her. susan doesn't say anything, but hallie knows that susan is upset because she is slumping in her seat and rolling her eyes. a psychologist would explain that hallie is interpreting her friend's emotion based on a. the behavioral component of emotion b. her friend's ability to regulate emotion c. the verbal component of emotion d. the physiological component of emotion select the best answer from the choices provided a b c d

In which part of the body is a ball-and-socket joint found?