Characteristics of polygenic inheritance

  1. Phenotypic traits are controlled by two or more genes.
  2. Its magnitude can be determined by measurement.
  3. A great diversity of organisms is seen.
  4. A, B and C are expressed states and a, b and c are secreted states.
  5. The expression capacity of each expressed gene is equal. That is, A = B = C
  6. The presence of each expressed gene (A or B or C) increases a person’s height by 3 inches.
  7. Latent homozygous (aabbcc) males are 5 ft and homozygous (aabbcc) females are 4 ft  in tall.

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