Reactions in which atoms are rearranged within a molecule are catalyzed by
A. hydrolases.
B. isomerases.
C. transferases.
D. ligases.
E. polymerases.
Answer: B
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A. Facilitated diffusion through channel proteins B. Facilitated diffusion through membrane carrier proteins C. Simple diffusion D. Active transport
Antigenic drift results in small changes in influenza viral proteins by accumulation of point mutations in the viral genome.
a. true b. false
Mitosis produces two daughter cells that:
A) are genetically identical to each other and to the original parent. B) aregenetically unique to each other and to the original parent. C) have two chromosomes each. D) each have a different number of chromosomes than the original cell. E) are haploid.
Which of the following drugs is/are produced by genetic engineering and approved for human use?
A. insulin B. Human growth hormone C. tissue plasminogen activator D. Factor VIII E. All of these choices are correct.