Use the following information to answer the next question. Pedigree Demonstrating the Inheritance of an Autosomal Recessive Trait 다이어 아

Could this be an autosomal dominant trait? C O yes O no Could this be an autosomal dominant trait? OO O no yes

D5

Can i please get help with the answer and please show me the work with an explaintion so I can understand

The next three questions go together. Duchenne's muscular dystrophy (DMD) is a disease caused by a recessive allele at a gene on the X chromosome. Polydactyly is caused by a dominant allele at an autosomal gene. If a phenotypically normal woman who's father had DMD has a child with man who is heterozygous for the allele causing polydactyly but is otherwise normal, what is the probability that the child will have elther DMD or polydactyly, but not both? Part I: What is the cross? A ppxx x PpxDxD B- PPXPXX Ppx©y C- ppx"x x Ppxdy D- ppxx x PpxOy OC OB O A OD Question 11 Part II: What is the probability the child will have polydactyly but not DMD? Enter your answer to two decimal places leg. 0.88). Question 12 Part II: What is the probability that the child will have either DMD or polydactyly, but not both? Enter your answer to two decimal places (eg. 0.88).

A woman with a straight hairline must be homozygous recessive.

True or False: Within a pedigree, a Y-linked trait of an affected father would ONLY pass it on to all the sons.

Examine the pedigree and answer the following questions; shaded individuals show the trait; genotypes are all unknown. The individual marked with the question mark is of an unknown genotype but lacks the trait. A. What mode of inheritance is the most likely, autosomal recessive or autosomal dominant? State your rationale for full credit. B. What is the genotype of the individual designated with the question mark? (Heterozygous, homozygous, or unknown). C. What are the genotypes of the parents in generation I? (Heterozygous, homozygous, or unknown). D. What are the genotypes of the three children of generation IV? (Heterozygous, homozygous, or unknown).