Today we started the chapter on cytogenetics.
We discussed chromosome terminology, the steps to prepare a human karyotype, and generalities about chromosome abnormalities: Polyploidy, aneuploidy, and the most common cases of each.
Emphasis was made on some cases of aneuploidy: (Patau syndrome (trisomy 13), Edwards syndrome (trisomy 18), and Down syndrome (trisomy 21)). Maternal age as a risk factor for the occurrence of trisomies was also discussed.
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