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What are two restrictions that limit human genetic experiments?

Answer:
  1. Ethics. The study may affect living volunteers or alter zygotes or embryos (developing human life) and therefore have legal and ethical ramifications.
  2. Safety. Any change to existing human genetics may have the capability to alter the biosphere in a way that could harm living humans. Changes must be carefully designed and contained.
First answer by Dfoofnik. Last edit by Dfoofnik. Contributor trust: 2556 [recommend contributor recommended]. Question popularity: 1 [recommend question].