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The survival rate of Edwards Syndrome is very low. About 95% die in utero. Of liveborn infants, only 50% live to 2 months, and only 5-10% will survive their first year of life.

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Is Edwards syndrome more common in certain populations?

Edwards syndrome, also known as trisomy 18, is not more common in any specific population. It occurs across all populations and ethnic groups, affecting about 1 in 5,000 live births globally. It is a chromosomal disorder caused by the presence of an extra chromosome 18 and is associated with severe developmental delays and multiple organ abnormalities.


What is the mode of inheritance for Edwards syndrome please help?

Edwards syndrome is typically caused by the presence of an extra copy of chromosome 18, rather than a specific gene mutation. This condition is usually not inherited, but rather occurs sporadically during the formation of reproductive cells.


What type of disorders are karyotyping used to diagnose?

Chromosomal disorders can be observed in a human karyotype. It can show whether there are extra chromosomes, or missing chromosomes, or malformed chromosomes, or whether chromosomes have extra pieces, or missing pieces.


What is the age of the oldest person with Edwards syndrome?

Actually there is a story I read saying...21 years ago my sister was born with Edwards Syndrome or Complete Trisomy 18.The doctors told my parents that helping this baby is a lost cause and she will only live for a month. My parents refused to give up and not help her.My sister turned 21 on Sunday. She is the oldest living person with Complete Trisomy 18.A parent's love GMH.Comments on #60556 (5)May 26, 2010 12:00 AM by Cody P, Crown Point, IN - Inspiring featsShare1065


What is an example of a lethal mutation?

Albinism, where the animal (or person) has no melanin (color) in their skin or hair, so they sunburn easily and are prone to skin cancer. The irises of their eyes are pink, so their eyes are sun-sensitive. Animals with no coloring of their skin can not hide from predators, so they don't live long in the wild. I don't think albinism is technically a lethal mutation. I think an example of lethal mutation is the overo gene in horses. Two copies of it produce a foal that dies shortly after birth due to problems with its digestive system. Any mutation that causes termination of pregnancy is a lethal mutation.