Prairie. Prairies are ecosystems considered part of the temperate grasslands, savannas, and shrublands biome by ecologists, based on similar temperate climates, moderate rainfall, and a composition of grasses, herbs, and shrubs, rather than trees, as the dominant vegetation type.
Triple X Syndrome (47,XXX) Triple X Syndrome is a genetic disorder that alters the sex chromosomes. The X chromosome, along with the Y chromosome, determine the sex of an individual. Most males have only one X chromosome and one Y chromosome, while most females have two X chromosomes.
Diagnosis: DNA analysis to identify trinucleotiderepeats; fragile X chromosome study Chapter 5 Genetic and Developmental Disorders514a__LII 0 0NormalAffectedmalemaleNormalfemaleAffectedfemaleFigure 5-4 Pedigree of an X-linked dominant disorder In these rare disorders, female carriersand males with the mutant dominant gene express the disorder The distribution is similar tothat of X-linked recessive disorders, except that carrier females are symptomatic.4.