alleryStart learning →Chromosome disorders fall into which two categories?
ADominant disorders and recessive disorders
BInherited disorders and acquired disorders
CNumber abnormalities and structural rearrangements
DAutosomal disorders and mitochondrial disorders
Answer & Solution
Correct answer: C. Number abnormalities and structural rearrangements
1. Inherited disorders can arise when chromosomes behave abnormally during meiosis.
2. They divide into abnormalities in chromosome number and chromosomal structural rearrangements.
3. Because even a small chromosome segment spans many genes, such disorders are dramatic and often fatal.
4. Dominance and recessiveness describe single alleles rather than whole chromosome faults.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 13 "Modern Understandings of Inheritance", section 13.2 Chromosomal Basis of Inherited Disorders_
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