Using the prepregnancy sickle test, fertilization produces several embryos that are tested for the sickle gene.An embryo without the gene is implanted in the mother and amniocentesis confirms whether the fetus has the sickle cell gene.

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A prepregnancy sickle test has potential for identifying other inherited diseases. Step 1, Fertilization produces several embryos. Step 2, The embryos are tested for the presence of the gene. Step 3, The embryo(s) without the gene are implanted. Step 4, Amniocentesis confirms whether the fetus (or fetuses) has the sickle cell gene .

Using the Prepregnancy Sickle Test, Fertilization Produces Several Embryos That