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A indicate the conditions under which allele frequencies (p and q) remain constant from one generation to the next b calculate, showing all work, the frequencies of the alleles and frequencies of the genotypes in a population of 100,000 rabbits of which 25,000 are white and 75,000 are agouti. Review for the ap biology exam by working through practice problems with sal learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Online ap learning that speaks to you ace your course and rock the exam with brief video lessons, review quizzes, and practice exams from expert teachers.