You are working as a genetics specialist in a hospital. A couple comes to you saying they want to have a baby, but they want the baby to have freckles (F) and neither of the potential parents has this trait. You take out your trusty, always useful, grade 9 Biology textbook and find out that freckles are inherited as a dominant trait. What news can you now give the anxious couple? Support this wise knowledge you have imparted by setting up a Punnett square to prove your point.
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Answer:
Their baby will never develop freckles.
Explanation:
Since having freckles is a dominant trait, if a person does not have freckles, they are said to be recessive for the gene. That is, a ff gene. Since the appearance of freckles require atleast one dominant allele, ie F, the parents are recessive for the gene for freckles hence can never have a baby with freckles.
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