Figure 10.9 Pedigree of ear lobe trait. Affected individuals have attached ear lobes while unaffected individuals have detached ear lobes. O O Question: Are attached ear lobes autosomal or sex-linked? How do you know? Autosomal Question: Are attached ear lobes dominant or recessive? How do you know? Paressive because

Figure 10.9 Pedigree of ear lobe trait. Affected individuals have attached ear lobes while unaffected individuals have detached ear lobes. O O Question: Are attached ear lobes autosomal or sex-linked? How do you know? Autosomal Question: Are attached ear lobes dominant or recessive? How do you know? Paressive because

Name: ??? Figure 10.9 Pedigree of ear lobe trait. Affected individuals have
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Description: ??? Figure 10.9 Pedigree of ear lobe trait. Affected individuals have attached ear lobes whileunaffected individuals have detached ear lobes.OOQuestion: Are attached ear lobes autosomal or sex-linked? How do you know?AutoomalQuestion: Are attached ea

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 4CT: The young woman shown at right has albinismvery pale skin, white hair, and pale blue eyes. This...

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Albinism is an autosomal (not sex-linked) recessive trait. A man and woman are both of normal pigmentation and have one child out of three who is albino (without melanin pigmentation). What are the genotypes of the albino's parents? Both parents must be homozygous dominant. Both parents must be heterozygous. One parent must be homozygous dominant; the other parent must be heterozygous. One parent must be heterozygous; the other parent can be homozygous dominant, homozygous recessive, or heterozygous. One parent must be homozygous for the recessive allele; the other parent can be homozygous dominant, homozygous recessive, or heterozygous. O O O O O
Colorblindness is an X linked gene. Normal vision (XN ) is dominant over colorblind (Xn). Cross a carrier female to a normal male. How many of their children will be colorblind? How many of their sons will be colorblind? How many of their daughters will be colorblind?
In humans, having facial dimples is dominant to not having facial dimples. Mary has dimples, yet only 3 of her 10 children have dimples. What must Mary's genotype be? homozygous dominant heterozygous homozygous recessive has dimples does not have dimples
If an individual is bald, so you can't tell whether or not they have a widow's peak, but neither parent has a widow's peak, which genotypes are possible? Unable to determine Heterozygous Homozygous recessive Homozygous dominant
Albinism (lack of skin pigmentation) is caused by an autosomal recessive allele. A man and woman, both normally pigmented, have an albino child together. For this trait, what is the genotype of both parents? Options Below: homozygous recessive homozygous dominant heterozygous hemizygous unknown, because not enough information is provided
Color-blindness is a sex-linked trait. A boy, whose parents and grandparents had normal vision, is color-blind. What are the genotypes for his mother and his maternal grandparents? Show all work
Figure 2: This Punnett Square shows inheritance of eye color. Brown eyes (B) is dominant. Green eyes (b) is recessive. Father's Genes BB Bb b Bb bb %23 %24 6 7 8. 3. 4. g B
In humans, the ability to roll your tongue is an autosomal dominant trait (T); the inability to rol your tongue is recessive (tt), having a cleft chin ai an autosomal dominant (N) and the lack of the cleft chinn is recessive (nn). A man can roll his tongue and has a clift chin; his father can not roll his tongue and didn't have a cleft chin. The man is married to a woman who can roll her tongue and who has a cleft chin; her mother coud not roll her tongue and didn't have a cleft chin. What are the possible genotuypes and phenotypes of the children? Woman's genotypes? Man's genotypes? Woman's gamete alleles? Man's gamete alleles?
Considering a common autosomal recessive trait: (Read each statement carefully. Select all of the statements below that are true (that you agree with). Leave any statements that are false (that you do not agree with) un- selected.) the unaffected biological siblings of an affected person should be heterozygotes. an unaffected woman and an affected man have at most a 100% probability of having a affected child. an affected person should have an affected parent. The unaffected offspring of an affected parent must be carriers.
Most of people in America are unable to taste phenylthiocarbamide (PTC). Sense of trait is governed by dominant allele while recessive condition leads to tasteless. Albinism is also a single locus trait with normal pigment being dominant and the lack of pigment being recessive. A normally pigmented woman who cannot taste PTC has a father who is an albino taster. She marries a homozygous, normally pigmented man who is a taster but who has a mother that does not taste PTC. What are the genotypes of the possible children?
Analysis of X-Linked Dominant and Recessive Traits A young boy is color-blind. His one brother and five sisters are not. The boy has three maternal uncles and four maternal aunts. None of his uncles children or grandchildren is color-blind. One of the maternal aunts married a color-blind man, and half of her children, both male and female, are color-blind. The other aunts married men who have normal color vision. All their daughters have normal vision, but half of their sons are color-blind. a. Which of the boys four grandparents transmitted the gene for color blindness? b. Are any of the boys aunts or uncles color-blind? c. Is either of the boys parents color-blind?
The young woman shown at right has albinismvery pale skin, white hair, and pale blue eyes. This phenotype is due to the absence of melanin, which imparts color to the skin, hair, and eyes. It typically is caused by a recessive allele. In the following situations, what are the probable genotypes of the father, the mother, and their children? a. Both parents have normal phenotypes; some of their children are albino and others are not. b. Both parents and all their children are albino. c. The mother is not albino, the father is albino, and one of their four children is albino.