Problem 2 Describe two ways to inherit blu... [FREE SOLUTION]

Chapter 4: Problem 2

Describe two ways to inherit blue eyes.

Short Answer

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One can inherit blue eyes if both parents have blue eyes, giving the offspring a 100% probability of having blue eyes. Alternatively, if both parents are heterozygous carriers of the blue eye gene, the child has a 25% probability of inheriting blue eyes.

Step by step solution

Genetics Background

Eye color is determined by multiple genes, with the two most important ones being EYCL1 (also known as the gey gene) on chromosome 19 which accounts for green/blue eye color, and EYCL3 (also known as the bey2 gene) on chromosome 15 which accounts for brown/blue eye color. Blue can occur from lower melanin concentrations and is a recessive trait, meaning both parents must carry the gene for blue eyes for their child to have blue eyes.

Inheritance Method 1: Both Parents Have Blue Eyes

Since blue eyes is a recessive trait, if both parents carry the gene and specifically have blue eyes, then there is 100% chance the offspring will also have blue eyes.

Inheritance Method 2: Both Parents Are Heterozygous Carriers

If both parents are heterozygous carriers of the blue eye gene, that is they possess one gene for blue eyes and one gene for another eye color, there is a 25% chance the child will inherit blue eyes. This is due to a 25% probability that the child will receive a blue eye gene from both parents.

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91影视

Describe two ways to inherit blue eyes.

Short Answer

Step by step solution

Genetics Background

Inheritance Method 1: Both Parents Have Blue Eyes

Inheritance Method 2: Both Parents Are Heterozygous Carriers

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