It requires two alleles in order to express it.Group of answer choicesautosomal dominant disorderautosomal recessive disorderNext

To determine which type of genetic disorder requires two alleles to express it, let’s analyze the characteristics of autosomal dominant and autosomal recessive disorders.

1. Autosomal Dominant Disorder: In this case, only one copy of the dominant allele is needed for the disorder to be expressed. This means that if an individual inherits one dominant allele from one parent, they will exhibit the trait, regardless of the second allele.

2. Autosomal Recessive Disorder: This disorder requires two copies of the recessive allele for the trait to be expressed. If an individual has one dominant allele and one recessive allele, the dominant trait will be expressed, and the recessive trait will not.

Conclusion

From this analysis, we can conclude that the correct answer is autosomal recessive disorder, as it is the type of disorder that requires two alleles (both recessive) to express the condition.