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A totipotent cell differs from a pluripotent cell in that a totipotent cell can form

  • A.a strictly limited number of related cell types
  • B.a complete organism including its placenta
  • C.only the cells found in the nervous system
  • D.any cell type except the reproductive cells

Answer: B

The zygote and its first few descendants are totipotent, able to make both embryo and the extraembryonic tissues around it. Pluripotent cells can form every tissue of the body proper but not the extraembryonic membranes, which is a narrower capacity.

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