Molecular Biology/Genetics USMLE Step 1 Practice Question
A 25-year-old male presents with red-green color blindness. Population screening reveals an allele frequency of color blindness in males at 1 in 100. Genetic testing confirms X-linked recessive inheritance with hemizygous genotype. The population demonstrates no evidence of inbreeding, migration, or natural selection at this locus. Assuming Hardy-Weinberg equilibrium applies, what is the expected frequency of color-blind females in this population?
Answer choices
- A0.025
- B0.02
- C0.0005
- D0.01
- E0.0001Correct answer
- F0.001
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