Campbell Biology 11th Edition by Lisa Urry,Michael Cain,Steven Wasserman,Peter Minorsky,Jane Reece

تمرين 8

Write down the possible genotypes, as determined by the phenotype.
a. If the phenotype is that of the dominant trait (for example, purple flowers), then the genotype is either homozygous dominant or heterozygous ( PP or Pp in this example).
b. If the phenotype is that of the recessive trait, the genotype must be homozygous recessive (for example, pp ).
c. If the problem says "true-breeding," the genotype is homozygous.