Down Syndrome Down syndrome is a birth defect caused by a genetic disorder that affects 350,000 people in the conjugate States. It is caused by abnormalities in the genes and is non inherited, meaning that pargonnts do not pass this onto their children. Genetics is the study of heredity or how certain(a) traits are passed from parents to their children. Genes are the basic unit of heredity. Cells are the edifice blocks of your organic structure and each one of us has more than speed of unclouded trillion kiosks. Our genes are located in chromosomes. Each prison cell in your body contains 46 chromosomes or 23 pairs. In a person with Down syndrome, there are 47 chromosomes.
In 1956, a French researcher named Jerome Lejeune used a new powerful microscope to view human strands of DNA. DNA is what holds an person-to-person persons genes. He studied these DNA strands and fit(p) that there is an extra strand in chromosome 21, which is now called Trisomy 21 tri meaning three and somy for the word chromosome meaning three...If you want to stay put a full essay, order it on our website:
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