OCR A2 Biology- Control, genomes and environment help!!Watch
Coat colour in mice is controlled by two genes. Gene 1 controls whether fur is coloured (C) or albino (c). Gene 2 controls whether the colour is grey (G) or black (g). Gene 1 is epistatic over gene 2. Describe and explain the phenotypic ratio produced in F2 generation from a CCGG x ccgg cross.
I don't understand how you know which type of epistasis is happening :/
In this cross all the offspring will be CcGg and so will all be grey