tate edu/d21/le/content/157473/viewContent/1741214/View Field of Hope D Special

Question

tate edu/d21/le/content/157473/viewContent/1741214/View Field of Hope D Special Online Sum Rebellion -Stanic 7. Given the distribution of thumb phenotypes among her children, Victoria must have had a genotype. a) homozygous recessive for the thumb phenotype b) heterozygous c) homozygous dominant d) either b or c 8. Nicholas and Alexandra's first daughter had straight thumbs. What would be the probability their future son would have curved thumbs? a) 0% b) 25% c) 50% d) 75% e) 100% 9. Nicholas married Alexandra and had four daughters and one son. Only the son had hemophilia. Therefore, you would correctly predict that each daughter had a chande of carrying the recessive hemophilia allele. a) 0% b) 25% c) 50% d) 75% e) 100%

Explanation / Answer

Ans 7)

d) c

The answer is this because for the thumb phenotype to reflect in the children the mother needs to be homozygous due to which the phenotypes go in the children.

Ans 8) The probability of the son to have curved thumbs is around 25% if anyone would have anything in recessive. There is a possibility that the mother and father have that in their recessive which increases the percentage.

Ans 9) Each daughter had 50% of carrying the hemophilia allele because it is something that was there in parent but not expressed or recessive.

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