If a female individual has a small round head,furrowed tongue,partially open mouth,and a broad palm with a characteristic palm crease,and also exhibits retarded physical,psychomotor,and mental development,the karyotype analysis of such an individual will show:
- A$47$ chromosomes with $XXY$ sex chromosomes
- B$45$ chromosomes with $XO$ sex chromosomes
- C$47$ chromosomes with $XYY$ sex chromosomes
- DTrisomy of chromosome $21$
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