Question

down syndromme is the mmost common type of trisomy individuals affected with down syndrom have a third blank chromosome

Answer 1

Down syndrome is the most common chromosomal disorder, and individuals affected by it have an extra copy of chromosome 21. Typically, individuals have two copies of this chromosome, but those with Down syndrome have three copies. This extra genetic material affects the development and functioning of the body and brain, leading to various physical and cognitive characteristics associated with the syndrome.