Home
Class 12
BIOLOGY
A sex trisomic in human beings is (a) D...

A sex trisomic in human beings is
(a) Down 's syndrome
(b) Cat cry syndrome
(c) Klinefelter's syndrome
(d) Muscular dystrophy

A

Down 's syndrome

B

Cat cry syndrome

C

Klinefelter's syndrome

D

Muscular dystrophy

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the following conditions is a sex trisomic disorder in human beings, we need to analyze each option provided: 1. **Understanding Trisomy**: - A trisomy is a type of chromosomal disorder characterized by the presence of an extra chromosome, leading to a total of 47 chromosomes instead of the normal 46. 2. **Analyzing the Options**: - **(a) Down's syndrome**: This condition is caused by the presence of an extra chromosome 21, known as trisomy 21. While it is a trisomy, it is not a sex trisomy but rather an autosomal trisomy. - **(b) Cat cry syndrome**: Also known as Cri du Chat syndrome, this condition is caused by a deletion of a part of chromosome 5, not by a trisomy. Therefore, this option is not correct. - **(c) Klinefelter's syndrome**: This condition occurs in males who have an extra X chromosome (XXY). This is indeed a sex trisomy, as it involves the sex chromosomes. - **(d) Muscular dystrophy**: This is a group of genetic disorders characterized by muscle degeneration and weakness, but it is not related to chromosomal trisomy. 3. **Conclusion**: - The correct answer is **(c) Klinefelter's syndrome**, as it is the only condition listed that is classified as a sex trisomy. ### Final Answer: (c) Klinefelter's syndrome
Promotional Banner

Topper's Solved these Questions

  • CHROMOSOMAL BASIS OF INHERITANCE

    DINESH PUBLICATION ENGLISH|Exercise Check Your Grasp|57 Videos

  • CHORDATA- PROTOCHORDATA

    DINESH PUBLICATION ENGLISH|Exercise CYG|11 Videos

  • COELENTERATA AND CTENOPHORA (OR CNIDARIA AND ACNIDARIA)

    DINESH PUBLICATION ENGLISH|Exercise CYG|10 Videos

Similar Questions

Explore conceptually related problems

Down 's syndrome is due to

Explain Down.s syndrome.

Down 's syndrome has trisomy of chromosome

A man is sterile due to improper development of testis which has an additional X chromosome. He's suffering from (a) Turner 's syndrome (b) Huntington 's disease (c) Klinefelter's syndrome (d) Marfan's syndrome

Klinefelter's syndrome is due to sex complement of

In mongolism/Down 's syndrome the patient has

Down's syndrome in humans is due to

Chromosomal condition of Down 's syndrome is

Down 's syndorme and Turner's syndrome are due to respectively

Which of the following cannot be detected in a developing foetus by amniocentesis? (A) Down syndrome (B) Jaundice (C) Klinefelter syndrome (D) Sex of the foetus