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 and Genetics. Cystic fibrosis is a genetic disease. People with CF have inherited two copies of the defective CF gene -- one copy from each parent. Both parents must have at least one copy of the defective gene.iagnosis and Genetics. Cystic fibrosis is a genetic disease. People with CF have inherited two copies of the defective CF gene -- one copy from each parent. Both parents must have at least one copy of the defective gene.