The new reproductive technologies, also called ' reproduction assistida' , they are procedures that allow the procreation without the sexual relation, the attempts to carry through procedures of reproduction medically attended had been initiated in the end of century XVIII. In 1978 these procedures had gained notoriety with the birth of Louise Brown, in England, who was the first generated baby in vitro. The objective of the reproduction is the generation of new individuals. A question of the extreme present time is the characterization of the moment where the new human being starts to be recognized as such. Currently nineteen different criteria for the establishment of the beginning of the life of a human being can be used. The more important ethical aspects that they involve reproduction questions human being are the relative ones to the use of the informed assent; the sex election; the donation of spermatozoa, vulos, daily pay-embryos and embryos; the election of embryos on the basis of it evidences of illnesses or problems associates; the maternity substitute; the embryonic reduction; the clonagem; research and criopreservao (freezing) of embryos Reproduction Medically Attended to the Artificial Insemination the Transference Intratubria de Gametas the Transference Intratubria de Zigotos the Fertilizao In Vitro Followed of the Transference of Embryos the Mothers of Substitution the techniques of reproduction medically attended, also called of techniques of artificial insemination, are classified in two great sorts: homologous artificial insemination and heterloga insemination. The artificial insemination is the process for which of – the transference mechanics of spermatozoa, previously collected and treated, for the interior of the feminine genital device. The intratubria transference of gametas (GIFT, its acronym in English), consists of catching the vulos of the woman through laparoscopia, endoscpico examination of the abdominal socket through a small incision in the wall of abdome (11), at the same time that the sperm of the husband is caught.

The resultant zygote or zygotes is transferred to the interior of the uterine tubes. The resultant embryo or embryos (period of training of 2 the 8 cells) is, then, transferred to the uterus or the tubes. It is the fertilizao in laboratory, known as baby of test tube a term that vulgarly calls ' ' mothers of aluguel' ' , She bears mentionning that one is not about one biological technique, but yes of the use of fertile women who if make use to load the embryo. The procreation is morally private of its proper perfection when it is not wanted as the fruit of the conjugal act, that is, of the specific gesture of the union of the husbands The respect to the bond that exists only enters the meanings of the conjugal act and the respect for the unit of the human being in accordance with allows to a procreation the dignity of pessoa.' ' Art. 2 Ines Detsi