In humans,sometimes during gametogenesis,sex chromosomes do not separate,resulting in a chromosome number of $45$,$47$,or $48$. In this condition,which of the following genotype and phenotype combinations is correct?

  • A
    $22$ pairs $+ XXY$ (males)
  • B
    $22$ pairs $+ XX$ (females)
  • C
    $22$ pairs $+ XXXY$ (females)
  • D
    $22 + Y$ (females)

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Similar Questions

Which of the following disorders is seen in human females only?

Match List-$I$ with List-$II$ : Choose the correct answer from the options given below :
List-$I$List-$II$
$A.$ Down's syndrome$I.$ $11^{th}$ chromosome
$B.$ $\alpha$-Thalassemia$II.$ $X$ chromosome
$C.$ $\beta$-Thalassemia$III.$ $21^{st}$ chromosome
$D.$ Klinefelter's syndrome$IV.$ $16^{th}$ chromosome

The chromosomal condition $2n-1$ is an example of what?

Match List-$I$ with List-$II$ and select the correct answer using the codes given below:
List-$I$ (Syndrome)List-$II$ (Chromosomal abnormality)
$(1)$ Patau's syndrome$(A)$ $44 + XXY = 47$
$(2)$ Klinefelter's syndrome$(B)$ $44 + X = 45$
$(3)$ Down's syndrome$(C)$ $46 + 1 = 47$,Chromosome $13^{th}$
$(4)$ Turner's syndrome$(D)$ $46 + 1 = 47$,Chromosome $21^{st}$

- Physical, psychomotor and mental development is retarded.
- Palm is broad with characteristic palm crease, these symptoms show....

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