Analyze the pedigree given here, answering the questions that follow. a. What is

Question

Analyze the pedigree given here, answering the questions that follow. a. What is the most likely mode of inheritance of this trait: autosomal or X-linked? Give and explain at least two reasons to support your answer, referring to specific examples in the pedigree. b. What is the most likely mode of inheritance of this trait: dominant or recessive? Give a reason to support your answer, referring to a specific example in the pedigree. c. Providing a legend for your symbols, give the genotypes of these six individuals I-2, II-2, II-4, III-2, III-6, IV-11.

Explanation / Answer

Autosomal

If both male and female are affected by 50/50 ratio it means Autosomal.
Both sexes transmit the trait to their offspring

Dominant
Does not skip generation
Affected offspring must have an affected parents.
When 1 parent affected and another parent unaffected 1/2 of the offspring will be affected.
Unaffected parents donot transmit the trait

I2- aa
II2 - aa
II4 - aa
III2 - Aa
III6 - aa
IV11 - Aa

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