(sabkÉnËtrÓktÉ) , ((American) sabËkontraktÉr) noun. a person who undertakes work for a contractor and is therefore not directly employed by the person who wants such work done. The building contractor has employed several subcontractors to build the block of flats.
Furthermore, three unrelated fragile X patients were found with a C-to-T point mutation at the 14th nucleotide in intron 10 with normal length CGGÂ·CCG repeats (Fig. 1F) (42). Clearly, these point mutations are sufficient for the development of the fragile X syndrome.
They are the chromosomes that determine gender, or sex chromosomes as they are often referred. Females have two X chromosomes, while males have an X and a Y chromosome. These chromosomes play a huge role in Rett Syndrome. Rett Syndrome is caused by a genetic mutation in one X chromosome. A gene known as MECP2 (pronounced meck-pee-two) found on the X chromosome, not only supplies essential MeCP2 proteins to the brain necessary for proper development, but also regulates other genes.