Figure 12.3 Homozygous or Heterozygous?

Original Paper: The original German version of Mendel’s paper, Versuche uber Pflanzen-Hybriden, with an English translation and extensive explanatory notes, is available online: www.mendelweb.org/Mendel.plain.html

An individual with a dominant phenotype may have either a homozygous or a heterozygous genotype. The test cross determines genotype.