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12 lis 2024 · Down syndrome is a genetic condition caused when an unusual cell division results in an extra full or partial copy of chromosome 21. This extra genetic material causes the developmental changes and physical features of Down syndrome. The term "syndrome" refers to a set of symptoms that tend to happen together.
27 paź 2023 · Down syndrome (trisomy 21) is a genetic disorder that affects about one in 700 newborns. Often, people with Down syndrome look the same or related due to distinctive physical characteristics. This article explains Down syndrome and how it is diagnosed.
12 kwi 2023 · In this article, Ability Central shares the most common symptoms of Down syndrome in infants, children, and adults. We also cover the diagnostic process for Down syndrome during pregnancy and for newborns.
Down syndrome or Down's syndrome, [12] also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [3] It is usually associated with developmental delays, mild to moderate intellectual disability , and characteristic physical features.
28 lis 2023 · If you’re a woman over 35, your baby’s father is over 40, or there’s a family history of Down syndrome, you may want to get an evaluation.
20 cze 2023 · Down syndrome is a lifelong genetic condition that begins to have effects before birth and can significantly impact many aspects of a person’s life. People who have Down syndrome can experience physical effects as well as cognitive challenges.
31 paź 2024 · For example, the incidence of the disorder in the offspring of women under age 30 is less than 1 in 1,000, whereas its incidence in the offspring of women over age 40 can range from about 1 in 100 to 1 in 30.
