Consider the pedigree in Figure 1. Unless there is evidence to the contrary, assume thaindividuals that have married into the family do not carry the recessive gene for the trait.AaAr3.78101115 16 171314Figure 1. Human pedigree showing four generations. Circles represent females,and squares represent males. Shaded circles and squares represent albinoindividuals.

Question
Asked Aug 25, 2019

What is the probability of cousins 7 & 15 producing an albino offspring?

Consider the pedigree in Figure 1. Unless there is evidence to the contrary, assume tha
individuals that have married into the family do not carry the recessive gene for the trait.
Aa
Ar
3.
7
8
10
11
15 16 17
13
14
Figure 1. Human pedigree showing four generations. Circles represent females,
and squares represent males. Shaded circles and squares represent albino
individuals.
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Consider the pedigree in Figure 1. Unless there is evidence to the contrary, assume tha individuals that have married into the family do not carry the recessive gene for the trait. Aa Ar 3. 7 8 10 11 15 16 17 13 14 Figure 1. Human pedigree showing four generations. Circles represent females, and squares represent males. Shaded circles and squares represent albino individuals.

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Step 1

Dominant allele is phenotypically expressed over another allele.

Recessive allele is only expressed in absence of dominant allele.

Albinism is disease where person have lack of pigmentation in the skin, eyes and hair. It is autosomal recessive inherited condition resulting from combination of recessive alleles passed from both parents to offspring.

Step 2

Pedigree is chart that show presence or absence of a trait within a family across the generations or used to analyze the pattern of inheritance of a particular trait throughout the family.

In Autosomal recessive cases, affected individual will be homozygous recessive but difficult to know unaffected individual either be dominant heterozygote or homozygote.

Step 3

 So, assume that 7th offspring of F2 generation is homozygous dominant(AA) because both parents and grandparents are unaffected from albino disease. So, there is zero percent chances of 7TH  offspring of F2 generation is  suffering from albino.

In case of 15t...

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