Comparing should include

• defining relevant terms
• outlining the similarities and differences among the different types of breeding
• identifying the reasons for and potential outcomes of the different types of breeding
• describing the use of genetics in selective breeding

• the impact of chromosomal abnormalities on animal health
• how a pedigree chart identifies potential recessive allele carriers
• how breeding programs are used to reduce genetic disorders
• the benefits of genome research for improved breed health and diversity.

Teacher Resource: StarGenetics, Office of Digital Learning, Massachusetts Institute of Technology 

Process/Skill Questions:

• Why might a breeder consider inbreeding?
• What is linebreeding? Why is it used?
• Which program—outcrossing, line breeding, or inbreeding—is least likely to produce conditions caused by homozygous recessives?
• Why would one avoid breeding an animal that phenotypically demonstrates a disease condition?
• Why do the offspring of an individual animal demonstrating an extraordinary characteristic, sometimes fail to meet the expectations of the breeder?