Turner Syndrome

Q.

Choose the correct option-

A human female with Turner’s syndrome-

1. has one additional X chromosome

2. has 45 chromosomes with XO

3. is able to produce children with a normal husband

4. exhibits male characters

Q. Assertion [A]: Turner syndrome occurs only in females.

Reason [R]: Turner syndrome is characterised by only one X chromosome.

1. Assertion [A] is true and Reason [R] is false
2. Reason [R] is true and Assertion [A] is false
3. Both [A] and [R] are true and [R] is the correct explanation for [A]
4. Both [A] and [R] are true but [R] is not the correct explanation for [A]

Q. Turner's syndrome arises due to abnormality in autosomes.

1. True
2. False

Q. Which among the following factors cause Turner's syndrome?

1. Inheritance of one extra X chromosome.
2. Inactivation of gender related part of X-chromosome.
3. Inheritance of only one X chromosome.
4. (b) and (c) above.

Q.

What causes dystocia?

Q. Choose the incorrect statement with respect to Turner syndrome.

1. It affects both men and women.
2. One of its symptom is hypertension.
3. The diseased female is sterile.

4. The diseased genotype exhibited is 44+XX.

Q.

What is the Charlie M syndrome?

Q. Down's syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder?

1. 50%
2. 25%
3. 100%
4. 75%

Q. Identify the symptoms associated with Turner's syndrome.

1. Small uterus
2. Brown spots
3. Webbed neck
4. Short stature
5. Sterility
6. Long limbs
7. Poor beard
8. Enlarged breast

Q. Distinguish between:
Turner syndrome and Klinefelter syndrome.

Q. Down syndrome is due to non-disjunction of

1. X - chromosome
2. Y - chromosome
3. Autosome
4. Second chromosome of Drosophila

Q. Turner's syndrome arises due to abnormality in autosomes.

1. True
2. False

Q. Turner's syndrome in human is caused by

1. Autosomal aneuploidy
2. Sex chromosome aneuploidy
3. Point mutation
4. Polyploidy

Q. Assertion :Down's syndrome, Klinfelter's syndrome and Turner's syndrome are chromosomal disorders. Reason: In Klinfelter syndrome females are sterile.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. An individual affected by Turner’s syndrome would be a:

1. Sterile female
2. Fertile female
3. Sterile male
4. Fertile male

Q. The genotype of an individual with Turner syndrome is:

1. 44+XX
2. 44+XXY
3. 44+XXX
4. 44+XO

Q. Which of the following is not a hereditary disease?

1. Cretinism
2. Thalassaemia
3. Cystic fibrosis
4. Haemophilia