Exploring Eye Color Genetics with Punnett Squares

The video explores the complexity of eye color, explaining the role of melanin in determining brown, blue, and green eyes. It highlights the evolutionary purpose of melanin and the unique way blue eyes reflect light, similar to the sky. The video also discusses how babies' eye colors develop over time and the genetic factors influencing eye color, using Punnett squares to illustrate inheritance patterns.

What is the primary reason for brown eyes from an evolutionary perspective?

• To improve depth perception

• To attract mates

• To enhance night vision

• To protect from the sun

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What substance is responsible for the brown color in eyes?

• Hemoglobin

• Chlorophyll

• Melanin

• Carotene

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Why do blue eyes appear blue?

• They have a special blue lens

• They contain blue pigment

• They lack any color

• They reflect blue light

What happens to light in blue eyes?

• It is scattered and reflected as blue

• It passes through without change

• It is reflected as blue

• It is absorbed completely

Why do most Caucasian babies have blue eyes at birth?

• They have a special blue pigment

• They lack melanin initially

• They have a different gene for eye color

• Their eyes are not fully developed

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What is the condition called where an individual does not produce any melanin?

• Albinism

• Melanoma

• Hyperpigmentation

• Vitiligo

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Which eye color is dominant over all others?

• Green

• Blue

• Hazel

• Brown

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What is the genetic condition for having blue eyes?

• Having at least one brown gene

• Having a mix of brown and green genes

• Having at least one green gene

• Lacking both brown and green genes

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In a Punnett square, what does a capital 'B' represent?

• Green eyes

• Hazel eyes

• Brown eyes

• Blue eyes

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If one parent has brown eyes (BB) and the other has green eyes (gg), what is the probability of their child having brown eyes?

• 100%

• 50%

• 25%

• 0%

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