3. Red-green color blindness (b) is a recessive sex-linked trait. A colorblind male marries a normal female. Their daughter is colorblind. a)What are the genotypes of both parents and the daughter? b) Can a colorblind father have daughters who are not colorblind? Explain.
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- 1. If you have the dominant trait and one of your parents shows the recessive trait, what is your genotype for that trait? 2. If you have straight hair but all of your family members have wavy and curly hair, what can you conclude about your genotype?1. An albino man whose parents are both normal marries a woman one of whose parents is normal and the other albino. She has an albino sister. The couple has a normal son. a. Is albinism a dominant or a recessive trait? Explain your answer. b. Give the genotypes of all the persons involved. c.The couple plans to have more kids. What is the probability of their second child being normal?13. A dominant x-linked allele (B) gives normal color vision but the recessive allele (b) causes red-green color blindness.A. What is the genotype of a man with normal color vision whose father was color- blind? B. What is the genotype of a woman with normal color vision whose father was color-blind? C. If a woman who is colorblind marries a man with normal vision, what would you expect for the genotypes and phenotypes of their children? D. If a man is color-blind, which parent did he inherit the gene from? Explain your answer. E. Which parent does a man get all his x-linked genes from? F. If a woman is color-blind, what do you know about the genotypes and phenotypes of her parents? G. Are men more likely than women to get a genetic disease which is x-linked and dominant? Are they more likely to get a disease that is x-linked and recessive? Explain your answers. H. Can a man with normal color vision have a colorblind daughter? Explain your answer.…
- 1. An albino man whose parents are both normal marries a woman one whose parents is normal and the other albino. She has an albino sister. The couple has a normal son. a. Is albinism a dominant or a recessive trait? Explain your answer. b.Give genotypes of all the persons involved. c. The couple plans to have more kids. What is the probability of their second child being normal?7. The ability to roll your tongue (R) is dominant to lack of this ability (r). A. What is the genotype of a man who can roll his tongue if his father couldn’t? B. If a man who is heterozygous for tongue rolling marries a woman who is heterozygous, what would you predict for the genotypes and phenotypes of their children?1)Explain the differences between the following terms:-Gene, allele, and locus-Genotype versus phenotype- Dominant versus recessive
- 1. If a man, dominant homozygote for tongue rolling, is expecting a child with a woman that is heterozygotic for the trait – what is the probability for their firstborn to be a daughter being dominant homozygotic for tongue rolling? 2. A color-blind female is expecting with a color seeing male – what is the probability of a male child to see color? 3. In Sweden 1/500 are born with an autosomal recessive disorder called thalassemia. What is the carrier frequency within the population?1. A mother with blood type A has a child with blood type O, and she claims that Mister X is the father. Mister X denies that he could possibly be the father, because he has blood type B. If you were the judge presiding over this case, which of the following arguments would you find most convincing? a. Mr. X could be the father if his blood genotype is IBIB, and the mother’s blood genotype is IAIA b. Mr. X cannot be the father because a child with blood type O cannot have a parent with blood type B c. Mr. X could be the father if his blood genotype is IBi, and the mother’s blood genotype is IAi d. Mr. X cannot be the father because a parent with blood type B cannot have a child with blood type O e. Mr. X cannot be the father because the human ABO blood types are sex-linked traits 2. A monohybrid cross between two pea plants producing yellow peas, resulting in an F1 phenotypic ratio of 3:1 (three yellow pea plants to one green pea plant) indicates what about the parental pea plants?…Build the family tree 1 A couple in which the vision of both is normal, has four children. In them and in their descendants the following characteristics are appreciated: to. A daughter with normal vision, who has a normal son and a color blind son and daughter b. An ija with normal vision, who has three normal daughters and two daughters c. A colorblind son, with two normal daughters d. A normal son, with two normal sons and two daughters Analyze the transmission behavior of color blindness, who transmits the disease, for which gene X or Y, is this condition responsible? 2. A woman has curly hair and her husband has straight hair. When they find out that they are going to have a child, they wonder what his hair will be like. Her mother argues that she will have it straight because her father (grandfather) had straight hair. The husband replies that he should have it curly because both of his parents had curly hair. Knowing that it is an autosomal character, determine: to. Family tree…
- 3. A couple just had a baby, who has type-O blood. Upon learning the baby’s blood type, the father becomesinfuriated and accuses the mother of cheating on him. The mother has type-A blood and the father has type-Bblood. Knowing that the allele for type-O is recessive, answer the following questions.a. What is the relationship between the IA, IB, and i alleles?b. Is the father right? Or is he falsely accusing the mother? Explain. Include the genotypes of the parentsand the genotypes of their potential children.6. Consider that people with blue eyes must have two alleles for blue eyes since blue eye color is a recessive trait. A blue-eyed person and a brown-eyed person have an offspring with blue eyes. The brown-eyed person must A. have two alleles for blue eyes. B. have two alleles for brown eyes. C. not have the dominant brown eye allele. D, have one allele for blue eyes and one allele for brown eyes.3.A woman is color blind. If she marries a man with normal vision, What are the chances of her a. sons being color blind? b. daughter being color blind? c. daughter being carriers?