q1 is d, a phenotype is how you look, so its 4. q2 is b, its one possiblity out of 4, so its 1. q3 is a, thats a pedigree chart, so its 7. q4 is c, if they both are expressed they are co dominate, so its 2.
Hormones are chemical substances that help to regulate processes in the body. Hormones are secreted by glands and travel to their target organs in the bloodstream. Hormones can be used to control human fertility.
