so we know that white feathered is bb so lets look, we see bb has a 1/4 chance, but theres also pea combed, and pea combed has anything with P in it so we can see 1PP and 2 Pp 1+2=3 so theres a 3/4 chance that we can get pea combed. multiply your ratios and there you go 1/4 X 3/4 = 18.75% and thats the probability (3/16 also) try to do the last on yourself,......
So now that we see how it looks when we cross the two we can recognize something here the genotype has a 1:2:1 ratio (this ratio is important a lot have this ratio) and how many total are there? well 1+1+2=4 so now we know that each one is out of 4. (1/4 PP) (2/4) Pp (1/4 pp). now that we have all that lets answer the first question, a single combed bird. well if we look at the P's we can see that the genotype is pp and pp has a 1/4 ratio so we can just say 1/4 or 25% easy enough. Next blue feathered well blue feathered is Bb right? and we see we have 2 Bb so there is a 2/4 ratio 2/4 = 1/2 = 50% so its 50%. Now white feathered pea combed. so we know that white feathered is bb so lets look, we see bb has a 1/4 chance, but theres also pea combed, and pea combed has anything with P in it so we can see 1PP and 2 Pp 1+2=3 so theres a 3/4 chance that we can get pea combed. multiply your ratios and there you go 1/4 X 3/4 = 18.75% and thats the probability (3/16 also) try to do the last on yourself, its very similar to D
