The genotype of a boy having sexual characters of a girl is
- A$XXX$
- B$XXY$
- C$XO$
- D$XYY$
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Which of the following disorders is related to the karyotype given below?
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View SolutionMatch Column $I$ with Column $II$ and find the correct answer.
Column $I$ Column $II$ $(A)$ Aneuploidy $(i)$ Increase in whole set of chromosomes $(B)$ Monoploidy $(ii)$ Loss or gain of a chromosome $(C)$ Polyploidy $(iii)$ Two sets of chromosomes $(D)$ Diploidy $(iv)$ $A$ single set of chromosomes
| Column $I$ | Column $II$ |
|---|---|
| $(A)$ Aneuploidy | $(i)$ Increase in whole set of chromosomes |
| $(B)$ Monoploidy | $(ii)$ Loss or gain of a chromosome |
| $(C)$ Polyploidy | $(iii)$ Two sets of chromosomes |
| $(D)$ Diploidy | $(iv)$ $A$ single set of chromosomes |
Who reported that Down's syndrome is due to an extra $21^{st}$ chromosome?
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