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Humster

A humster is a hybrid cell line made from hamster oocyte fertilized with human sperm routinely created for mainly two reasons:

  • To avoid legal issues with working with pure human embryonic stem cell lines.
  • To assess the viability of human sperm for in vitro fertilization.

Somatic cell hybrids between hamster or mouse and man have been used for mapping of various traits at least since the 1970s.