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SAT Biology Subject Test Practice Questions

Category - Biology

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A child in a local hospital is found to have a condition caused by gene X. Gene X is found to be recessive. If the gene is not mutated, then the child must have inherited gene X from __________.

Mother only
Father only
Either parent
Both parents
Father is the child is female

Explanation

Answer: D, Both parents. Recessive traits only appear in an offspring when inherited from both parents.

Key Takeaway: A principle of dominance is that dominant traits will appear even if only one dominant allele is inherited. As a result, recessive traits only appear when they are inherited from both the male and female parent.

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SAT Biology Subject Test Practice Questions

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SAT Biology Subject Test Practice Questions

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