4-day-old mouse embryos (IMAGE)

University of Bath

4-day-old mouse embryos

Caption

A normal 4-day-old mouse embryo (L) and an embryo of the same age that has been manipulated to contain maternal chromosomes only (parthenogenote). At this stage, the embryos (blastocysts) appear similar, but the parthenogenote will soon die, underscoring the importance of inheriting imprinted genes from both parents. Different cell types are stained green or red.

Credit

Dr Maki Asami, University of Bath

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