Jun 24, 2012 The problem I have seen happen is if you have a rabbit of questionable breed, you write on your pedigree it is a particular breed, then later down the line it can cause problems if you happened to be mistaken. A pedigree chart is a tool for genetic or genealogical research. It is similar in structure to a family tree, but is more of a working document.
It may include specific information about an area of study, such as hereditary diseases, for example. On this pedigree chart, you are the first generation, your parents are the second, and your grandparents are the third, your greatgrandparents are the fourth, etc. Common sizes for pedigree charts are 4, 5, or 6 generations on an 812 x 11 sheet, and 12 or 15 generations on an oversized sheet.
Pedigree analysis is also useful when studying any population when progeny data from several generations is limited. Pedigree analysis is also useful when studying species with a long genration time. A series of symbols are used to represent different aspects of a pedigree. Students know how to predict the probable outcome of phenotypes in a genetic cross from the genotypes of the parents by creating and analyzing a pedigree chart.