2) What is a gene? a) An organelle b) A molecule c) A section of a chromosome that controls a trait d) A combination of sugar, starch, and cells 3) What is a chromosome? a) A segment of DNA that controls one trait b) A type of cell c) A double helix d) A bundle of DNA

I need to know 2 and 3 plss help or I'm going to fail
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Providing immunity by injecting the body with a weakened form a pathogen is known as

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

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.