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What are two means of identifying genetic disorders and describe the processes involved?
Wiki User
∙ 11y ago
One method involves the CHORIONIC VILLI SAMPLING where the geneticist does exactly that. They take a sample from the embryo's outermost extra-embryonic membrane, the chorion, that forms villi which penetrate the endometrium and serve as a means of substance exchange. From this sample, they map the karyotype of the cells and scan the DNA for lethal genes. The other method is an AMNIOCENTESIS. This is where a thin, hollow needle is pushed through the abdomen and into the amniotic cavity in order to remove a sample of the amniotic fluid so embryonic cells can be collected, the DNA isolated and the karyotype scanned. Both these methods can be used to discover whether the child has, for example, down's syndrome, sickle cell anaemia or albinism. Of course, other non-invasive methods can be carried out such as drawing up a pedigree diagram where the families of the parents are investigated and the possibilities of having recurring recessive lethal genes can be looked at.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoScientist may tesh for genetic disorders using FISH or DNA profiling.
Wiki User
∙ 12y agoI'm not sure but have you been checked for a defective grammar and/or spelling gene?
Wiki User
∙ 9y agoGenetic counseling and amniocentesis
Wiki User
∙ 9y agothe study of something doctors or tests
Wiki User
∙ 12y agoKaryotypes, and Pedigrees
Wiki User
∙ 11y agoblood and urine analysis
Wiki User
∙ 11y agoPCR
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