Question

During a medical investigation, an infant was found to possess an extra chromosome 21. Describe the symptoms the child is likely to develop later in the life.

Answer 1

*An additional copy of chromosome number 21 (trisomy of 21) leads to Down' syndrome. The affected individual will have :**

(i) Short-statured with small round head

(ii) Furrowed toggle

(iii) Partially open mouth

(iv) Broad plam with characteristic palm crease

(v) **** physical, psychomotor and mental development.