Question

A person with trisomy of 21^st chromosome shows ______.

1. Furrowed tongue
2. Characteristic palm crease
3. Rudimentary ovaries
4. Gynaecomastia

Select the correct option, from the choices given below:

Options

• ii and iv

• i, ii and iv

• ii and iii

• i and iii

Answer 1

A person with trisomy of 21^st chromosome shows furrowed tongue and rudimentary ovaries.

Explanation:

Down syndrome is caused by trisomy of chromosome 21. The distinct palm crease is a common physical characteristic among persons with Down syndrome. However, rudimentary ovaries and gynaecomastia are often not linked to Down syndrome.