Question:
A person with trisomy of the 21st chromosome shows:
(i) Furrowed tongue
(ii) Characteristic palm crease
(iii) Rudimentary ovaries
(iv) Gynaecomastia
Select the correct option from the choices given below:
A person with trisomy of the 21st chromosome shows:
(i) Furrowed tongue
(ii) Characteristic palm crease
(iii) Rudimentary ovaries
(iv) Gynaecomastia
Select the correct option from the choices given below:
(i) Furrowed tongue
(ii) Characteristic palm crease
(iii) Rudimentary ovaries
(iv) Gynaecomastia
Select the correct option from the choices given below:
Show Hint
Down syndrome is caused by the presence of an extra copy of chromosome 21, leading to distinct physical and cognitive traits.
Updated On: Jan 13, 2026
- (ii) and (iv)
- (i), (ii), and (iv)
- (ii) and (iii)
- (i) and (ii)
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the condition of trisomy 21. Trisomy of chromosome 21 leads to Down syndrome, a genetic disorder caused by an extra copy of chromosome 21.
Step 2: Symptoms of Down syndrome. Key features include: - Furrowed tongue (i) - Characteristic palm crease (ii) Other traits, such as developmental delays, may also occur.
Was this answer helpful?
0
0
Top CBSE CLASS XII Biology Questions
- All algae have
- With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.
- With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte
- Draw a labeled diagram of male reproductive system.
- Draw a labeled diagram of female reproductive system.
View More Questions
Top CBSE CLASS XII Genetic Disorders Questions
Top CBSE CLASS XII Questions
- 2, b, c are in A.P. and the range of determinant $\begin{vmatrix}1&1&1\\ 2&b&c\\ 4&b^{2}&c^{2}\end{vmatrix}$ is [2, 16]. Then find range of c is
- A boy of mass 50 kg is standing at one end of a, boat of length 9 m and mass 400 kg. He runs to the other, end. The distance through which the centre of mass of the boat boy system moves is
- A capillary tube of radius r is dipped inside a large vessel of water. The mass of water raised above water level is M. If the radius of capillary is doubled, the mass of water inside capillary will be
- A circular disc is rotating about its own axis. An external opposing torque 0.02 Nm is applied on the disc by which it comes rest in 5 seconds. The initial angular momentum of disc is
- A circular disc is rotating about its own axis at uniform angular velocity \(\omega.\) The disc is subjected to uniform angular retardation by which its angular velocity is decreased to \(\frac {\omega}{2}\) during 120 rotations. The number of rotations further made by it before coming to rest is
View More Questions