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(d) Is this pedigree consistent with sex-linked dominant inheritance?

If you chose "yes", answer questions (i) and (ii) and leave parts (iii) and (iv) blank. If you chose "no", leave parts (i) and (ii) blank and answer questions (iii) and (iv).

i) If you chose "yes" above. Drag and drop in the appropriate genotype from the options below to indicate the genotypes of all the individuals in the pedigree. You may use each of the labels below once, more than once, or not at all. Note that the upper case letter indicates the allele with the dominant phenotype.

Xᴬ XᴬXᴬ X_Xᴬ XᵃXᵃ XᵃXᴬ YXᵃ Y
ii) If you chose "yes" above. If Individuals 5 and 6 have another daughter, what is the probability that the girl will be affected by the disease? Please give a number between 0.0 and 1.0. Use as many significant digits as you need.

iii) If you chose "no" above. Which set or sets of individuals is inconsistent with sex-linked dominant inheritance? Choose all that apply from the list below:

Individuals 1, 2, 3, and 5
Individuals 3, 4, 7, and 8
Individuals 5, 6, 9, and 10
Individuals 10, 11, 12, and 13
iv) If you chose "no" above. Can you change one individual from unaffected to affected and make this pedigree consistent with sex-linked dominant inheritance? If so, give the number of that individual. If it is not possible, enter 0.


  • biology -

    No. Individuals 1, 2, 3, and 5. AND
    Individuals 5, 6, 9, 10, and 11.....
    ...give the number of that individual = 5.

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