your text. Consider the following pedigree for the trait albinism (lack of skin pigmentation) in three generations of a family. (Solid symbols represent individuals with albinism.) Complete the unlabeled pedigree by indicating the genotypes for all involved. From your knowledge of Mendelian inheritance, answer the questions that follow.

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Chapter1: The Human Body: An Orientation
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Pedigree analysis is often used to determine mode of
inheritance (dominant or recessive, for example). Be sure to
read the "Tips for Pedigree Analysis" in Figure 14.15 in
34.
your text.
Consider the following pedigree for the trait albinism
(lack of skin pigmentation) in three generations of a family.
(Solid symbols represent individuals with albinism.)
Complete the unlabeled pedigree by indicating the
genotypes for all involved.
From your knowledge of Mendelian inheritance,
answer the questions that follow.
a. Is this trait caused by a dominant or recessive allele?
What is the evidence for your
response?
Transcribed Image Text:Pedigree analysis is often used to determine mode of inheritance (dominant or recessive, for example). Be sure to read the "Tips for Pedigree Analysis" in Figure 14.15 in 34. your text. Consider the following pedigree for the trait albinism (lack of skin pigmentation) in three generations of a family. (Solid symbols represent individuals with albinism.) Complete the unlabeled pedigree by indicating the genotypes for all involved. From your knowledge of Mendelian inheritance, answer the questions that follow. a. Is this trait caused by a dominant or recessive allele? What is the evidence for your response?
b. Determine the genotypes of the parents in the first generation. (Let A and a represent the
alleles.)
Genotype of father
- genotype of mother
What is the evidence for your response?
c. Determine the probable genotypes of the mates of the offspring with albinism in the
second generation and grandson #4 in the third generation.
Genotypes: mate #1
; mate #2
grandson # 4
d. Can
determine the genotype of son #3 in the second generation? Why or why not?
you
Transcribed Image Text:b. Determine the genotypes of the parents in the first generation. (Let A and a represent the alleles.) Genotype of father - genotype of mother What is the evidence for your response? c. Determine the probable genotypes of the mates of the offspring with albinism in the second generation and grandson #4 in the third generation. Genotypes: mate #1 ; mate #2 grandson # 4 d. Can determine the genotype of son #3 in the second generation? Why or why not? you
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