Answer :
Final answer:
Artificial insemination involves the introduction of sperm into a woman's cervix or uterus to encourage natural fertilization, while in vitro fertilisation involves the combination of egg and sperm in a laboratory, with the resulting embryos being implanted into the woman’s uterus after they have developed to a suitable stage.
Explanation:
The main difference between artificial insemination and in vitro fertilisation lies in where the fertilization of the egg and sperm takes place. In artificial insemination, the sperm is implanted directly into a woman's cervix or uterus during the optimal time for fertilization, promoting natural fertilization within the body. This is most commonly used when there are problems with the sperm, such as low count or motility.
On the other hand, in vitro fertilisation (IVF) involves the fertilization of the egg and sperm outside the body. Eggs are harvested from the woman after hormonal treatment, and sperm is obtained from the man. These are then combined in a lab setting. When the embryos reach the eight-cell stage, they are then implanted into the woman’s uterus. IVF is often used when a woman's fallopian tubes are blocked or if there are other complicating factors making natural conception difficult. Surplus fertilized eggs can be frozen and stored for future use.
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