Question

A person with trisomy of 21\textsuperscript{st chromosome shows:}
(i) Furrowed tongue
(ii) Characteristic palm crease
(iii) Rudimentary ovaries
(iv) Gynaecomastia
Select the correct option from the choices given below:

• A. (ii) and (iv)
• B. (i), (ii), and (iv)
• C. (ii) and (iii)
• D. (i) and (ii)

Hint:

Down syndrome is caused by the presence of an extra copy of chromosome 21, leading to distinct physical and cognitive traits.

Answer 1

The Correct Option is D

Trisomy of chromosome 21 results in Down syndrome. 
Symptoms include furrowed tongue (i) and characteristic palm crease (ii). Other features vary and may include developmental delays.