Dr Kathy Niakan said the experiments would provide a deeper understanding of the earliest moments of human life and could reduce miscarriages.
The regulator, the Human Fertilisation and Embryology Authority (HFEA), will consider her application on Thursday.
If Dr Niakan is given approval then the first such embryos could be created by the summer.
Every person has gone through a remarkable transformation from a single fertilised egg into a fully fledged human being made of trillions of precisely organised cells.
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Source Credits: James Gallagher in BBC Health