#35-Sex-Aneuploidy-Turner-Klinefelter-Syndrome
(Botany) > Principles of Inheritance & Variation

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Consider the following statements:

I. People affected by phenylketonuria are unable to convert tyrosine to phenylalanine.

II. Alzheimer's disease results from accumulation of amyloid protein plaques in the brain.

III. Klinefelter's and Turner's syndromes are the result of non disjunction of the sex chromosomes in either of sexes.

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

 57%
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A human female with turner's syndrome

(1) has 45 chromosomes with XO

(2) has one additional X-chromosome

(3) exhibits male characters

(4) is able to produce children with normal husband

 84%
From NCERT
NEET - 2014
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XO-chromosomal abnormality in human beings causes

(1) Turner's syndrome

(2) Down's syndrome

(3) Kilnefelter's syndrome

(4) none of these.

 87%
From NCERT
AIIMS - 2007
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Which of the following occurs due to monosomy of sex chromosome?

1. Down's syndrome

2. Turner's syndrome

3. Haemophilia

4. Sickle cell anaemia

 82%
From NCERT
AIIMS - 2014
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Barr body is missing in the female suffering from 

(1) Huntington's disease

(2) Tay-sach's disease

(3) Klinefelter's syndrome

(4) Turner's syndrome

 77%
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