What Disability Is Caused by Having 47 Chromosomes? Understanding Down Syndrome

Discover how having 47 chromosomes leads to Down syndrome, its causes, symptoms, and key genetic details explained simply.

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The condition associated with 47 chromosomes is Down syndrome. Individuals with Down syndrome have an extra copy of chromosome 21, leading to a total of 47 chromosomes. This genetic variation can cause physical growth delays, characteristic facial features, and mild to moderate intellectual disability.

FAQs & Answers

  1. What causes the extra chromosome in Down syndrome? Down syndrome is caused by having an extra copy of chromosome 21, known as trisomy 21, which results in 47 chromosomes instead of the usual 46.
  2. What are common symptoms of Down syndrome? Common symptoms include mild to moderate intellectual disability, distinct facial features, and delays in physical growth and development.
  3. How is Down syndrome diagnosed? Down syndrome can be diagnosed prenatally through screening tests and confirmed with genetic testing such as karyotyping after birth.

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For those interested in learning more about genetic disorders and chromosomal abnormalities, explore our related videos on Trisomy conditions, genetic testing, and developmental genetics to deepen your understanding of these medical topics.

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