AP BIOLOGY

Detailed explanation-1: -Correct option is A) A person’s skin color, hair color, dimples, eye color, and blood type are all examples of genetic variations that can be seen in the human population. People with blue eyes have one allele of the gene for eye color, whereas people with gray eyes will have a different allele of the gene.

Detailed explanation-2: -Examples of genetic variation in humans include blood group, skin colour and natural eye colour. Whether you have lobed or lobeless ears is due to genetic causes. Biological sex is also an inherited variation-whether you are male or female is a result of genes you inherited from your parents.

Detailed explanation-3: -Discontinuous variation refers to things like eye colour or blood group, which have a limited number of possible values.

Detailed explanation-4: -Whether eyes are blue or brown, eye color is determined by genetic traits handed down to children from their parents. A parent’s genetic makeup determines the amount of pigment, or melanin, in the iris of the his or her child’s eye. With high levels of brown melanin, the eyes look brown.

Detailed explanation-5: -Thus, polygenic inheritance is the inheritance in eye color.