What are the three breeding systems employed with domestic ...

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What are the three breeding systems employed with domestic animals?
 
  What will be an ideal response?

Question 2

List the five common genetic changes or mutations.
 
  What will be an ideal response?

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Answer to Question 1

The breeding systems employed with domestic animals include:

1 . Straightbreeding or purebred breeding
2 . Crossbreeding
3 . Synthetic inbred lines for grandparent stock

Answer to Question 2

Genetic changes or mutations include:

1 . Deletion of a gene or part of a gene
2 . Gene duplication
3 . Gene inversion
4 . Gene translocation
5 . Point mutation of a single nucleotide leading to single nucleotide polymorphisms (SNPs)