Down syndrome (DS) is a genetic disorder that  occurs when there is an abnormal cell division, which results in an extra copy of chromosome 21. This extra genetic material is the cause of some developmental changes and physical features of DS. A baby is typically born with 46 chromosomes, but in babies with Down syndrome, there is an extra copy of the chromosome, chromosome 21. This extra chromosome changes the baby’s body and brain development, which can cause mental and physical challenges for the baby. People with Down syndrome usually look alike. But despite the similarities in facial appearances, each person has different abilities. They usually have low IQ and…