You have raised the issue of embryos at this point.

I have my own difficulties with the use of embryos for research.

There are no national data on the number of frozen embryos.

I believe so, but again, not at the expense of human embryos.

Does not the eye of the human embryo predict the light?

These things may lead to the death of the embryo or fetus.

During growth and development of the embryo, there is an increased need for oxygen.

By law, federal money cannot be used for research involving the destruction of embryos.

The average number of embryos has been recorded as approximately 2.72.

But does regulation continue throughout development, or is it just a property of the early embryo?