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Research note: Colour used to show changes when colors discussed. Also the use of color -- how else could this be enhanced? Any ideas about infolinks? Links to glossaries -- are these the best way to do online presentation of glossaries? Would this be better as a soundbyte that you hear when you click on it? Or what about a video in some cases? Here we have also indented the text to make sure its not too close to the edge of the screen for reading. Can we manage this with style sheets?

College of Cat Genetics: Student Seminar 3
by Patricia Turner

Effects of Multiple Gene Inheritance
A number of students have expressed puzzlement over the inheritance of colours which are not produced by the action of one single gene.
[Ed. Note:  this article looks at the effects of multiple genes in different colors.  I have made them into separate sections for easier reading.]
Lilac/Lavender
Milk-Chocolate Pointed Siamese
Blue Dilution
Mock Albino
This seminar will have explained that not all colours can be predicted without prior knowledge of the effect of one gene or genes upon others.  Furthermore, there are variations in the color produced by genes known as polygenes--genes with small individual effect.  Polygenes can be manipulated only by selection.

Thus, an understanding of Mendelian genetics is only the beginning of any study in cat genetics and must be accompanied by an understanding of interaction effects, polygenic inheritance and many other factors.

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