What information does a human karyotype analysis provide to medical geneticists?
Answer and explanation
Correct answer: A. The number, size, and gross visual structure of chromosomes
- Step 1: A karyotype is an organised visual micrograph of an individual's complete set of homologous chromosomes arranged by size. Step 2. It detects aneuploidy (e.g. extra chromosome 21 in Down syndrome) and gross structural rearrangements (translocations, large deletions). Answer: The number, size, and gross visual structure of chromosomes. Why not the others: Base sequencing requires DNA sequencing technologies, not light microscopy karyotypes.
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