Duchenne muscular dystrophy is an X-linked recessive disorder. A Punnett square is shown. The columns are labeled Upper X m and Upper Y. The rows are labeled x Upper M and x m. What is the probability that a female offspring of the cross that is shown above would have a recessive allele for Duchenne muscular dystrophy disorder? 0 percent 25 percent 50 percent 100 percent
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Duchenne muscular dystrophy is an X-linked recessive disorder. A Punnett square is shown. The column...
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