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Individuals with a karyotype of 45 chromosome 44 autosome and one sex chromosome have been found to suffering from the abnormality called female dysgenesis or
(a)Down syndrome
(b)Turner syndrome
(c)
Klinefelter's syndrome
(d)Testicular feminisation

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Important Questions on Principles of Inheritance and Variation
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A person has long legs, female like appearance with breast (gynecomastia) and sterile will have one of the genetic compliment

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Number of Barr body present in a female child with down syndrome :-

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Most common cause of mental retardation (Congenital) in male children is :

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Trisomic autosomal congenital disease is :-

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Klinefelter's syndrome is denoted by :

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Gene and cistron words are sometimes used synonymously because-

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The concept of sudden genetic change which breeds true in an organism is visualized as :-

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Mutation is :-
