Adapted from Webster et al., 2015 On the dog chromosome #10…
Adapted from Webster et al., 2015 On the dog chromosome #10 there is a gene that codes for ear morphology (upright vs. floppy ears) (there is likely more than one gene that codes for this trait, but for simplicity’s sake we will deal with it as if it were coded by one gene). Let’s assume the gene for ear shape is indicated by the letter F, with individuals who are FF having floppy ears, individuals who are Ff having an intermediate ear shape, and individuals who are ff having pointy ears. Rover who has floppy ears mates with Fido who has intermediate ears. What percentage of the offspring from this mating will have: Floppy ears, intermediate ears, pointy ears? If Fido mates with another dog that also has intermediate ears, what percentage of the offspring will have: Floppy ears, intermediate ears, pointy ears?