In a very small population of birds, assume there are two types of alleles that control feather color. 5 out of 20 total alleles in the population code for blue feathers. what is the allele frequency of the "blue feather allele" in this population?

Is the extended response or ??

i think its saying that blue feathers are the recessive trait ??

Could answer better if i had answers to go by !!

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.