in the case of polygenic inheritance, all the genes A B C control the production of a red color pigment. which of these genotypes corresponds to the highest production of color?
A. aaBBcc
B. AaBBCc
C. aabbCc
D. AaBbCc
E. AAbbcc
how can we solve this question?
Hi! I believe it’s because B has the most dominant alleles for all the genes involved in colour so it will produce the most pigment. D would be right too but they mention POLYGENIC inheritance so I believe BB would give more colour than Bb. Polygenic means there is a range of possibilities - like skin colour. So here’s codominance or a bunch of genes of small effect averaging out. Does this help? :)) For example when you have a mixed kid from a black father and white mother, the child could end up with a skin tone in between them or more towards black/white.