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From alleles to genotype frequencies

From alleles to genotype frequencies

Punnett square showing Hardy-Weinberg random mating with gametes A and a labelled p and q, and genotype boxes AA, Aa, Aa and aa labelled p squared, pq, pq and q squared

A species is a group that can interbreed to produce fertile offspring, and a population is members of that species living together in one place and time. The gene pool is the total collection of alleles in that population.

Hardy-Weinberg, isolation and speciation Lesson

  1. A Level
  2. /Biology
  3. /Hardy-Weinberg, isolation and speciation

Step-by-step lessons covering Edexcel A A Level Biology Hardy-Weinberg, isolation and speciation for A Level Biology. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.

Lessons