Inheritance Graph

Inheritance of Recessive Traits.

By crossing a carrier sire and dam (both heterozygous for dwarfism, or Dd), the potential combinations of genetic inheritance include a 25% chance of a DD, or homozygous normal calf, a 25% chance of a dd, or homozygous mutant (bulldog) calf, or a 50% chance of a Dd calf, or heterozygous dwarf 

Discovery Zone:

Genetic Defects in Cattle

Dr. Terry Stewart, Purdue University, discusses the genetic defects, Syndactyly and Polydactyly, Dwarfism and Osteopetrosis (Marble Bone).


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