You wish to test 3 sires to determine whether they have the h allele. Outline 3 tests that give you information about the genotypes of these sires. All tests should be completed within 6 months. How many animals phenotypes must be evaluated for each scheme if you want to have a level of confidence in your results of 90% Explain what information each test can provide.

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.

I'm sorry i'm not completely sure. but i really need on my recent question