Question

At what level does the defect occur in chromosomal disorders?

Options

• Mitochondrial level

• Chromosome level

• Ribosomal level

• DNA / gene level

Answer 1

In chromosomal disorders, the defect occurs at the chromosome level, involving numerical (aneuploidy) or structural (deletions, duplications, inversions) abnormalities of entire chromosomes or chromosomal regions, rather than at the individual gene level.