Yellow is a Sex Linked Gene discovered in 1962 [1] The vast majority of people have seen Yellow in the form of Tortoiseshell. Female Yellows are always Tortoiseshell. Male Yellows only ever have 1 copy of the gene as this gene is located on the X Chromosome, females have 2 Copies. [2]
Male Yellow |
Toto/ToY |
Female Yellow |
ToTo |
References
[1]Logsdail, C., Logsdail, P. and Hovers, K. (2007). Hamsterlopaedia. Surrey [England]: Ringpress, p.137.
[2]http://www.midlandhamsterclub.co.uk/hamster/yellow.html
[2]http://www.midlandhamsterclub.co.uk/hamster/yellow.html