Rights Act of 18663 and then in section 1 of the Fourteenth. Amendment.4 In doing so, Congress set aside the Dred Scott hold-. ing, and restored the traditional precepts of citizenship by birth.5. Based on the first sentence of section 1,6 the Court has held.
Grouped into 23 pairs, we get one set from our mother and the other from our father. One of these pairs of chromosomes determines if a person is male or female: Males (XY) get the X chromosome from the mother and the Y chromosome from the father. Females (XX) inherit one X chromosome from each parent. The Fragile X premutation can be passed silently down through generations in a family before a child is affected by the syndrome.
The cause for Fragile X syndrome is mutation in one gene, the Fragile X Mental Retardation 1 gene, or the FMR1 gene. It is present on the X chromosome. This results in mental retardation. Mental retardation is further linked with more than five hundred different conditions.