Which one of the following genetic disorders | vedclass

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(B) $1$. Down's syndrome is caused by trisomy of chromosome $21$,resulting in a karyotype of $45 A + XX$ or $45 A + XY$.$2$. Klinefelter's syndrome oc

Vedclass · Accepted Answer

Klinefelter's syndrome - $44 A + XXY$

Vedclass · Answer

(B) $1$. Down's syndrome is caused by trisomy of chromosome $21$,resulting in a karyotype of $45 A + XX$ or $45 A + XY$.$2$. Klinefelter's syndrome occurs in males with an extra $X$ chromosome,resulting in a karyotype of $44 A + XXY$.$3$. Turner's syndrome occurs in females due to the absence of one $X$ chromosome,resulting in a karyotype of $44 A + XO$.$4$. Colour blindness is a sex-linked recessive disorder caused by a mutation on the $X$ chromosome,not a chromosomal abnormality involving an extra or missing autosome set ($45 A + XY$ is incorrect).Therefore,the correct match is Klinefelter's syndrome - $44 A + XXY$.

Which one of the following genetic disorders is $CORRECTLY$ matched with its karyotype?

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