Question

This passage describes the Thomsen disease trait in humans:Thomsen disease is a condition that causes temporary muscle stiffness. When a human with Thomsen disease first contracts a resting muscle, the muscle is slow to relax and may stay contracted for a while. But after repeated use, the muscle can contract and relax normally. This is known as the warm-up effect.In a group of humans, some individuals have Thomsen disease and others do not. In this group, the gene for the Thomsen disease trait has two alleles. The allele M is for having Thomsen disease, and the allele m is for not having Thomsen disease.Chad is a human from this group. Chad's phenotype for the Thomsen disease trait is having Thomsen disease. Chad's genotype for the Thomsen disease gene is Mm.Based on this information, complete the following statement.

Answer 1

Chad has one dominant allele (M) and one recessive allele (m) for the Thomsen disease trait, which means he exhibits the phenotype of having Thomsen disease.