With minor exceptions, the genetic code
a. is the same for all living organisms and viruses.
b. is specialized so that viruses have a different code from all living organisms.
c. differs between different organisms and viruses.
d. is the same for all viruses and for single-celled organisms, but is more complex in
multicellular organisms.
e. has three versions: one for viruses, one for single-celled organisms, and one for
multicellular organisms.
A
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Which of the following opportunistic organisms is associated with slowly progressive subacute bacterial endocarditis?
a. H. ducreyi b. H. influenzae c. Aggregatibacter aphrophilus d. H. parahaemolyticus
A chromosome inherited from the male parent is called the
1.sex chromosome. 2.homologous chromosome. 3.sister chromatid. 4.paternal chromosome. 5.maternal chromosome.
Flatworms
a. are radially symmetrical. b. possess a body cavity. c. reproduce by parthenogenesis. d. have tissues derived from all three primary germ layers.
Which of the following statements about self-assembly is false?
A) The noncovalent interactions that drive supramolecular assembly processes are similar to those that dictate the folding of individual protein molecules. B) Self-assembly only occurs in structures composed of protein. C) Self-assembly requires specific chemical conditions. D) Molecular chaperones are sometimes required for the proper folding and assembly of complex proteins. E) All of the above.