Question

Karyotype of a child shows trisomy of chromosome number 21. Identify the disorder and state the
symptoms which are likely to be exhibited in this case,
23​

Answer 1

Answer:

Down syndrome is a genetic disorder. It is also called trisomy 21. It includes certain birth defects, learning problems, and facial features. A child with Down syndrome also may have heart defects and problems with vision and hearing. How severe or mild these problems are varies from child to child.

Down syndrome is one of the most common genetic birth defects. It affects about 1 in 800 babies. Adults with Down syndrome may live about 60 years, but this can vary.