QUESTIONS

1. Why is it advantageous for breeders to be able to identify an animal carrying a recessive gene?
2. How might identification of a recessive carrier be established?
3. What is meant by the term "backcross to the recessive"?
4. What is meant by the "first filial generation"?
5. State Mendel's Second Law of Genetics.
6. What may cause exceptions to Mendel's Second Law?
7. Describe linkage.
8. What is meant by "multifactoral inheritance"? Give an example.
9. What is the difference between a congenital and an inherited defect?
10. What is meant by "inbreeding"?
11. What is meant by "line breeding"?
12. What is the name of the term given to the breeding of animals less closely related than those picked at random?
13. Why might outbreeding be beneficial?
14. What is the main disadvantage of outbreeding?
15. What is a hybrid?
16. What other name might be given to hybrid vigour?