Genetics of Eye Color Quiz

Match the following factors with what they determine in a person's eye.

• Determines the color of the eye

• The thickness of the lens

• Determines the amount of light entering the eye

• The amount of melanin in the iris

• Determines the refraction and focus of light

• The shape of the cornea

• Determines the focus and clarity of vision

• The size of the pupil

During a biology class, Anika asked her teacher, "What are melanocytes responsible for?"

• Focusing light

• Producing tears

• Changing eye color

• Producing melanin

In a biology class, Liam is studying the process of melanosome maturation. Which gene is involved in this process?

• ASIP

• TYR

• HERC2

• OCA2

Mia is studying genetics and comes across the HERC2 gene. What is the role of the HERC2 gene?

• Controls the expression of OCA2

• Produces melanin

• Determines the shape of the iris

• Regulates pupil size

During a science class, Scarlett and Henry were discussing eye colors. Scarlett asked, "Which eye color is associated with the least amount of melanin?"

• Green

• Brown

• Hazel

• Blue

Sophia is doing a science project on genetics and she wants to know that more than (a)   genes have been discovered to influence eye color.

• More than 150
• About 200
• Less than 50
• Exactly 100

Match the following eye colors with their dominance in genetics.

• Most dominant

• Blue

• Moderately dominant

• Hazel

• Least dominant

• Brown

• Less dominant

• Green

What is heterochromia?

• Having multicolored irises

• Having no eye color

• Having a single eye color

• Having eyes of different colors

In a genetics class, Abigail asked her teacher, "Which gene is also known as the gey gene?"

• EYCL1

• HERC2

• EYCL3

• OCA2

Lily has very light-colored eyes and experiences vision problems. What condition might she have?

• Ocular albinism

• Astigmatism

• Heterochromia

• Myopia