In his breeding experiments, Mendel first crossed true-breeding plants to produce a second generation, which were then allowed to self-pollinate to generate the offspring. How do we name these three generations?

P; F1; F2

A plant with the genotype AABbcc is homozygous at two loci.

• True
• False

True

Two organisms with genotype AaBbCcDdEE mate. These loci are all independent. What fraction of the offspring will have the same genotype as the parents?

1/16

Height in humans generally shows a normal (bell-shaped) distribution. The type of inheritance that most likely determines height is incomplete dominance.

• True
• False

False

If an individual is heterozygous for the sickle-cell trait, they will most likely show symptoms of the disease.

• True
• False

True