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Name: Lesa
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Question:
In humans, freckles is dominant over no freckles. A man with freckles, reproduces with a woman with freckles, but the children have no freckles. What chance did each child have for freckles?



Replies:
Maybe both parents were heterozygous for freckles. When you are created at fertilization, your mom gives one of her freckle genes and your dad gives one of his freckle genes. If your mom's gene was the freckle gene and your dad's was the no-freckle gene, then you would have freckles but you still can give a no-freckle gene to your offspring when you have a baby. If you marry someone who has both a freckle gene and a no-freckle gene, your baby could get both of your no-freckle genes and have no freckles.

Van Hoeck



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