The characteristic of albinism (lack of pigment in skin and hair), can be caused by a single gene. The following pedigree shows a family in which some people are affected by albinism. 3 1 2 3 4 6 7 8 II 3 5 6 IV 1 a. Using just the information on this pedigree, is albinism caused by a dominant allele or recessive alleles? b. What are the genotypes of the great-grandparents (generation I)?

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter11: Genome Alterations: Mutation And Epigenetics
Section: Chapter Questions
Problem 16QP: Familial retinoblastoma, a rare autosomal dominant defect, arose in a large family that had no prior...
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11
В I U A
2
5 6 I
7
16. The characteristic of albinism (lack of pigment in skin and hair), can be caused by a single
gene. The following pedigree shows a family in which some people are affected by
albinism.
4
6
8
II
4
IV
1
3
4
5 6 7
a. Using just the information on this pedigree, is albinism caused by a dominant
allele or recessive alleles?
b. What are the genotypes of the great-grandparents (generation I)?
hp
Transcribed Image Text:ols Add-ons Help Last edit was seconds ago Calibri 11 В I U A 2 5 6 I 7 16. The characteristic of albinism (lack of pigment in skin and hair), can be caused by a single gene. The following pedigree shows a family in which some people are affected by albinism. 4 6 8 II 4 IV 1 3 4 5 6 7 a. Using just the information on this pedigree, is albinism caused by a dominant allele or recessive alleles? b. What are the genotypes of the great-grandparents (generation I)? hp
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Calibri
BIUA
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+
111
1 3 lI 4 EEII E 5
c. What are the genotypes of the grandparents (II-4 and Il-5)?
d. Can you determine the genotype of lI-5 without knowing that they had an
affected child? What are the possible genotypes for II-5 without this
information?
e. What are the genotypes of the parents (III-5 and III-6)?
lılı
田
Transcribed Image Text:dd-ons Help Last edit was seconds ago Calibri BIUA 11 + 111 1 3 lI 4 EEII E 5 c. What are the genotypes of the grandparents (II-4 and Il-5)? d. Can you determine the genotype of lI-5 without knowing that they had an affected child? What are the possible genotypes for II-5 without this information? e. What are the genotypes of the parents (III-5 and III-6)? lılı 田
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