Question

Which hereditary disorder is caused by an extra chromosome, resulting in 47 chromosomes instead of 46?

पर्याय

• Phenylketonuria (PKU)

• Hemophilia

• Down Syndrome

• Color blindness

Answer 1

Down Syndrome

Explanation:

Down Syndrome occurs when a child has 47 chromosomes instead of the normal 46, leading to physical deformities and intellectual disability.