Explain how an individual can have Down's Syndrome, and a karyotype that reveals 46 chromosomes.   Group of answer choices The individual has an inversion on chromosome 21. The individual is trisomic for chromosome 21. The individual has one chromosome that is the result of a translocation. The individual is monosomic for chromosome 21. None of these is correct.

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Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations
Section: Chapter Questions
Problem 22QP: Identify the type of chromosomal aberration described in each of the following cases: a. loss of a...
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Explain how an individual can have Down's Syndrome, and a karyotype that reveals 46 chromosomes.  

Group of answer choices
The individual has an inversion on chromosome 21.
The individual is trisomic for chromosome 21.
The individual has one chromosome that is the result of a translocation.
The individual is monosomic for chromosome 21.
None of these is correct.
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