Weathering and erosion. Weathering is the process where rock is dissolved, worn away or broken down into smaller and smaller pieces. There are mechanical, chemical and organic weathering processes.
What is trinucleotide repeat disorders? A class of genetic diseases that causes expansion of the number of trinucleotide (three base repeats of CG-rich units) within a gene sometimes associated with deleterious consequences.
Multiple hereditary exostosis (MHE) is an autosomal dominant disorder characterized by the development of multiple osteochondromas and a defect in the EXT-1, EXT-2, or EXT-3 genes. EXT-1 patients have higher rates of sarcomatous change when compared to those with a defect in EXT-2.