The Joy of Genetics: Exploring Hair Color Inheritance
What are the chances that two redheaded parents will have a brown-haired kid?
(A) 100%
B) 75%
C) 50%
D) 25%
Final answer: The chances of two red-haired parents having a brown-haired child are 0%.
Chances of Two Redheaded Parents Having a Brown-Haired Kid
In this case, if both parents have red hair, it means that they both carry two copies of the recessive red hair gene. Since brown hair is dominant over red, a child can only have brown hair if they inherit the dominant brown hair gene from at least one parent. Therefore, the chances of two red-haired parents having a brown-haired child are 0%.
Understanding genetics and inheritance can be a fascinating journey, especially when it comes to traits like hair color. In the case of brown hair being dominant over red hair, the likelihood of two redheaded parents having a brown-haired child is quite slim.
When both parents have red hair, it indicates that they both carry two copies of the recessive red hair gene. Since brown hair is the dominant gene in this scenario, a child can only have brown hair if they inherit the dominant brown hair gene from at least one parent. Therefore, the chances of two red-haired parents having a brown-haired child are 0%, as seen in the final answer.
This example highlights the intricate nature of genetic inheritance and how traits are passed down from parents to their offspring. It's truly a marvel how our genes determine various physical characteristics, including hair color.