Chinese geese are by far the most popular breed for weeding chores due to their active foraging habits, moderate size, unmatched agility, good availability and reasonable prices. (Holderread, 1986). Poultry catalogs will commonly refer to this breed as Weeder Geese. The Chinese goose is refined and curvaceous.
An SNP is a single base pair mutation at a specific locus, usually consisting of two alleles (where the rare allele frequency etiology of many human diseases and are becoming of particular interest in pharmacogenetics.
We often use these SNPs as genetic markers. Ancestral vs derived alleles. An ancestral allele or an ancestral trait (depending on whether you look at the phenotype or a t the genotype) is the trait/allele that was carried by the common ancestor of the taxon you consider. Single-Nucleotide-Polymorphism (SNP) is a kind of genetic variation that you find in population. This genetic variation is defined as a variation caused by only one single nucleotide (as its name indicates it).