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DownвЂ™s syndrome ( T21)ДownвЂ™s syndrome is caused by an extra copy of chromosome 21 in all or some cells of the body.ДЄ person with DownвЂ™s syndrome will have some level of learning disability. Screening cannot identify which form or what level of disability your baby will have. Having the extra chromosome in just some cells is called the mosaic form and can lead to milder effects for the child. They are all caused by having an extra copy of a chromosome in some or all cells of the body. Changes can occur in the sperm or egg cells, which can lead to a baby having an extra chromosome.Д«abies with DownвЂ™s syndrome, EdwardsвЂ™ syndrome or PatauвЂ™s syndrome are born to mothers of all ages but the chance of having a baby with one of the conditions increases as the mother gets older. There are 23 pairs of chromosomes in each cell. They carry the genes that determine how we develop. These are made of DNA (genetic material). Inside the cells of our bodies there are tiny structures called chromosomes. Following either of these screening tests you may be offered a diagnostic test to confirm whether or not the baby has one of the conditions.ДЇind more information about DownвЂ™s syndrome, EdwardsвЂ™ syndrome and PatauвЂ™s syndrome on the NHS website. You may then be offered a second type of screening test called NIPT (non-invasive prenatal testing). The first screening test is called the combined test (or the quadruple test if you are later in your pregnancy). The screening process may involve several different tests. This screening will be offered if youвЂ™re having one baby or twins. EdwardsвЂ™ syndrome and PatauвЂ™s syndrome only.If you choose to have screening, you can be screened for: It may lead to personal choices about your pregnancy. Screening is not perfect and might provide an incorrect result. Some people want to find out if their baby has one of the conditions and some do not. You do not have to have the screening test. To find out how likely it is that your baby has DownвЂ™s syndrome (Trisomy 21 or T21), EdwardsвЂ™ syndrome (Trisomy 18 or T18) or PatauвЂ™s syndrome (Trisomy 13 or T13). This short animation explains screening for DownвЂ™s syndrome, EdwardsвЂ™ syndrome and PatauвЂ™s syndrome in pregnancy.ДownвЂ™s syndrome, EdwardsвЂ™ syndrome and PatauвЂ™s syndrome video 1. In this information, the word вЂweвЂ™ refers to the NHS service that provides screening. Public Health England (PHE) created this information on behalf of the NHS.

Baby are you down down down down down down