Which of the following statements is true for affected autosomal recessive individuals?

Prepare for the Mississippi State Biology 1 Exam with flashcards and multiple choice questions. Each question offers hints and explanations to help you get ready for your exam!

Affected autosomal recessive individuals typically inherit two recessive alleles for a particular trait. This means that if both parents are carriers, meaning they each have one recessive allele and one dominant allele, they can pass on the recessive allele to their offspring without showing any signs of the condition themselves. As a result, it is entirely possible for unaffected parents to have an affected child when both parents carry the recessive allele, leading to the child's genotype of two recessive alleles.

In contrast, if an individual has one affected parent, it implies a dominant trait would not be expressed if the parent carries a dominant allele; hence, affected individuals will not always have affected parents. Additionally, they cannot have two dominant alleles because that would not express the recessive condition. Lastly, saying they will always express a dominant trait is incorrect since the trait being examined is recessive. Thus, the statement regarding the possibility of being born to unaffected parents accurately describes the genetic inheritance pattern of autosomal recessive conditions.

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