Prokaryotic cells are distinguishable from eukaryotic cells because prokaryotes do not contain
(a) organelles,
(b) a plasma membrane,
(c) DNA,
(d) a nucleus
Answer: (d) a nucleus
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Cyclospora cayetanensis has, so far, not been identified with an animal source
Indicate whether this statement is TRUE or FALSE.
Which molecule, when moving across a plasma membrane, would require the most ATP to be used?
A) a water molecule B) a simple sugar, such as glucose C) a dissolved gas, such as carbon dioxide D) an ion moving against a concentration gradient
A deletion of a particular stretch of chromosome 15 can cause either Prader-Willi syndrome or Angelman syndrome, depending on
A. the parental origin of the normal and deleted chromosome. B. whether a nondisjunction event has occurred. C. whether or not the region is methylated properly. D. whether a translocation event has occurred.
Netting modified for sandflies should also be useful in preventing malaria
Indicate whether the statement is true or false