Biology for IGCSE & O level - Inheritance (Section 1 - No. 19)
Which of the following is an accurate statement regarding autosomal recessive inheritance?
Affected individuals always have an affected parent.
Affected individuals are always homozygous for the recessive allele.
All offspring of two affected parents will be carriers.
Males are more likely to be affected.
Explanation
In autosomal recessive inheritance, individuals must have two copies of the recessive allele to express the trait. The other statements are incorrect or not always true in this scenario.
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