In-vitro-fertilisation

In-vitro-fertilisation is the reproduction technology where the egg cells are fertilised outside of the womb.

Such an "artificial insemination" is realised when the a normal fertilisation is impossible. First success: 1978.

If you here something about in-vitro-fertilisation mostly it's in relation with gene technology. But in the true sense it has nothing to do with it. It's not a question of manipulations in the genetic make-up but human conception. This is possible through the normal sexual act, through a fertilisation of an egg cell in test tube or through transfer of sperm in the female sexual organs.

Procedure:

1. You put the egg cells in a special nutrient solution and the you add washed sperm liquid, that have to leave for 18 hours.
2. You put the egg cells for about 40 hours in another cereal product.
3. When they are fertilised and normally developed, you plant it in the uterus of mother.

It's often the case to plant more than one embryo. Then you have a higher chance to cause a pregnancy. It's possible to freeze the surplus embryos for later experiments.

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