Movie - Parental genomes

Embryology - 26 Apr 2024 Expand to Translate
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Movie shows initial parental genomes mixing in early embryonic mitosis.

In the mouse zygote, separation of chromatin according to parental origin is preserved up to the four-cell embryo stage and then gradually disappears.

This movie shows that up to the 4 cell stage in the preimplantation embryo, the distribution of the 2 parental genomes remain segregated. After this stage, there is a gradual mixing of the 2 genomes with each cell division.

Male Sperm Genome - light green
Female Egg Genome - dark blue

Links: MP4 movie | Cell Division - Meiosis | Cell Division - Mitosis | Week 1 | Zygote

Image frames kindly provided by Thomas Haaf.

Reference

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