The function of the structure shown below is

Dominance the dominant allele doesn’t fully mask or hide the recessive. for example, a red carnation with a white carnation will produce a carnation. one gene one trait. well most of the time than one gene controls a trait. we are all different but genetically speaking we are % similar with regards to genetic makeup.

Name the glands associated with human digestive system

Which would be the most useful source of evidence to support mcneill's contention?