While you are taking this test, you probably paid little attention to the ongoing body functions, such as breathing, heart rate and digestion. Such involuntary functions are governed by the nervous system.

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.

Can a trait be both polygenic and have multiple alleles? explain why or why not.

This is the interaction of two organisms where one is and the other is neither nor harmed.