Down Syndrome

Down Syndrome Sometimes when meiosis ( the division of reproductive cells ) occurs, chromosomes whitethorn be lost, left behind, or too many whitethorn be passed on, resulting in the birth of a child with a genetic or congenital defect or disease. uncomparable of the most common of these genetic dis distinguishs is Down syndrome. This dis rank takes its moniker from Dr. Langdon Down, who was the first to describe it formally, in 1866. Down syndrome is a agree marked by abnormal physical and mental development that is caused by a genetic defect. This genetic defect is caused by an wasted chromosome.

People born with Down syndrome have 47 chromosomes compared to the normal amount of 46, 23 chromosomes inherited from each parent. This spare chromosome originates more often in the mothers egg than the fathers sperm. Chromosomes are individual, grave DNA molecules in a cell nucleus. They contain the genes on with structures that hold the DNA and aid it in expressing heredity by orchestrating cellular operati...If you want to get a full essay, order it on our website: BestEssayCheap.com

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