Can a Baby Have a Different Eye Color Than Both of His or Her Parents?

Even though most individuals are taught rudimentary genetics in high school biology class, when it comes time for the real-world application of these lessons in real life, it can be tough to recall the fundamentals of genetics.

For instance, one inquiry we field sometimes when most people consult us about paternity DNA testing? “Is it possible for two blue eyed parents have a brown eyed baby?”

There is some confusion when it comes to this topic! Read on for the answer.

The Eyes Have It: Genetics & Eye Color

The Davenport Model

Frequently, people believe that two parents with brown eyes can’t have a blue-eyed child, all because of a model formulated by scientists G.C. and C.B. Davenport in 1907. They stated that brown eye color would continuously be overriding over blue eyes.

Now, scientists have found that this model is incorrect. In spite of it being uncommon, it is conceivable for blue-eyed parents to have brown-eyed children, and vice versa.

OCA2

How is this possible? The hue of an individuals’ eyes is typically found by the OCA2 gene on chromosome 15. “Weaker” forms of OCA2 produce in blue eyes, and “stronger” forms consequence in brown eyes.

Nevertheless, this isn’t the one gene that touches eye color. Minor genes can be prevalent and influence how the weak (or blue) form of OCA2 operates, resulting in light brown, muddy grey, hazel, green, or blue eyes, contingent on the circumstances.

Does Eye Color Predict Paternity?

So what does this mean for your family? Essentially, you should not be concerned if a child has different colored eyes than both of his or her parents, as this does not necessarily prove any infidelity.

Of course, the one method to be certain of a child’s paternity is through DNA testing. Test Smartly Labs offers court-admissible, subtle, and private paternity and maternity testing as well as other forms of relationship DNA testing. If you are doubtful and want to check any biological relations, please reach out to us.

Test Smartly Labs provides accurate, confidential DNA tests. To learn more about our DNA Testing Services, contact Test Smartly Labs today at (816) 800-9699. We have five lab locations in the greater Kansas City area!

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