Down Syndrome

cut down Syndrome Sometimes when meiosis ( the division of reproductive cells ) occurs, chromosomes whitethorn be lost, left behind, or too many may be passed on, resulting in the birth of a child with a patrimonial or congenital defect or disease. unitary of the most common of these genetic dis bon tons is Down syndrome. This inconvenience takes its take in from Dr. Langdon Down, who was the first to describe it formally, in 1866. Down syndrome is a originator marked by abnormal visible and mental growth that is caused by a genetic defect. This genetic defect is caused by an spear carrier chromosome.

People innate(p) with Down syndrome have 47 chromosomes compared to the normal amount of 46, 23 chromosomes inherited from each parent. This extra chromosome originates more often in the mothers egg than the fathers sperm. Chromosomes are individual, round DNA molecules in a cell nucleus. They contain the genes on with structures that hold the DNA and serve it in expressing heredity by orchestrating cellular opera...If you want to complicate a full essay, order it on our website: OrderEssay.net

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