= Genetics === The following pedigree depicts a certain hereditary trait in a fa

Question

= Genetics ===

The following pedigree depicts a certain hereditary trait in a family. Note that individuals I-1 and I-2 are close relatives.

Answer following questions based on the diagram above:

A. What is the mode of inheritance of this trait?

B. Explain your answer in A above?

C. What is the genotype of individual II-5?

D. Explain your answer in C above?

Request: Please answer if and only if you know the correct answers, no guestimates please. My teacher already hinted answers for A and C. So, I would definitely able to verify your answers right away :)

Explanation / Answer

Answer:

A) Autosomal dominant

B) 50% children shows the disease conditon in Autosomal dominant,in this case the offspring is diseased.

C) aa. the II-5 is normal.

d) As is is autosomsal dominant, parents effected (Aa) and uneffected (aa) genotypes, gives four uneffected (aa) and one effected (Aa).

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