Hardy-Weinberg Equilibrium

AP Biology· difficulty 2/5

A population shows two phenotypes for a trait controlled by one locus with complete dominance.

Phenotype Count Freq. Dominant 640 0.64 Recessive 360 0.36 N = 1000, HW assumed

Assuming Hardy-Weinberg equilibrium, what is the frequency of the recessive allele q?

  • A

    0.6

    check_circle
  • B

    0.36

  • C

    0.24

  • D

    0.4

Explanation

Recessive phenotype frequency equals q² = 0.36. Therefore q = sqrt(0.36) = 0.6.

Want 10 more like this — adaptive to your weak spots?

Related questions