A woman with normal color vision whose father was color-blind mates with a man with normal color vision. 1.What do you expect to see among their offspring? 2.What would you expect if it was the normal man’s father who was color-blind?
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A woman with normal color vision whose father was color-blind mates with a man with normal color vision.
1.What do you expect to see among their offspring?
2.What would you expect if it was the normal man’s father who was color-blind?
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- 1. A woman is colorblind. Construct a Punnett square and using versions of the letter “C” determine if she marries a man with normal vision: What are the chances her sons will be colorblind? What are the chances her daughters will be colorblind? What are the chances of having a carrier daughter? 2. Both the husband and wife have normal vision. Their son is colorblind. What can you conclude about the father’s genotype? What about the mother’s genotype? Father: Mother: 3. If a young girl has fragile X syndrome, a recessive trait (f), what is her genotype? What are the possible genotypes of her father and mother? Mother: _________ or __________ Father: _________________ If her brother also developed this condition, which parent (father, mother, or both) contributed a disease allele? Explain your answer as well as constructing Punnett squares to support your answer. 4. Both the mother and father of a hemophiliac son have normal blood clotting. What are the genotypes of the…1) having dimples D is dominant over not having dimples d. A dimples woman whose father had no dimple and whose mother did have dimples marries a man whose mother had no dimples, whose whose father had no dimples and whose grandparents on his father's side did have dimples. What is the genotype of the woman what is the genotype of the man 2) Deafness in cocker spaniels is inherited.The allele for deafness is recessive to the allele for normal hearing. Two cocker spaniels with normal hearing are mated together. They produce a little of eight puppies, two of which are found to be deaf. Give the genotype of the parent. How many of the puppies will be unable to produce deaf offspring1. What percentage of the offspring will have a homozygous recessive genotype? Gray fur White fur 2. What will be the ratio of gray fur to white fur in the offspring? Gg x gg 3. What percentage of the offspring will have a tall phenotype? t. Tall Short 4. What percentage of the offspring will have a homozygous recessive genotype? TT tt 5. What percentage of the offspring will have white eyes? White eyes Dark eyes 6. What percentage of the offspring will have a heterozygous genotype? 7. What percentage of the offspring will
- 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…6. In humans, the gene for normal vision (B) is dominant to the gene for color blindness (b). Color blindness is a sex-linked trait. Which of the following would be the genotype for a colorblind male? xbxb xExb O W * REQUIRED DELL * REQUIRED U1. Two normal visioned parents have a color-blind son. Give the genotype of both parents and the son.
- 1. What percentage of the offspring will have a homozygous recessive genotype? Gray fur White fur 2. What will be the ratio of gray fur to white fur in the offspring? 33 x 89 3. What percentage of the offspring will have a tall phenotype? Tall Short 4. What percentage of the offspring will have a homozygous recessive genotype? TT tt White eyes Dark eyes have white eyes? 5. What percentage of the offspring will 6. What percentage of the offspring will have a heterozygous genotype? PR PUO pp pa × Long beak Short beak 7. What percentage of the offspring will have a homozygous dominant genotype? 11 8. What will be the ratio of long beaks to Tutorial Sche2. A red-green colorblind woman marries a man with normal vision. Their first child is a girl. Their second child is a boy. What is the probability that the girl will be colorblind? What is the probability that the boy will be colorblind? Briefly justify each one of your answers.Example/ Hitchhikers thumb is dominant to straight thumbs*. A man with straight thumbs marries a woman with Hitchhikers thumb. The woman's father had hitchikers thumbs. What are the odds that they'll have a child with straight thumbs?
- Colorblindness is a sex-linked trait. A color- blind woman marries a man with normal color vision. They have ten children, six boys and four girls. How many have normal vision? Which sex are they? How many are color- blind? Which sex are they?2. A man whose parents were normal with respect for color vision marries a woman of normal vision and similar pedigree. One of their daughters is colorblind. Give the genotypes of this daughter, her parents, and paternal grandparents. Grandmother Grand father. Mom Dad Daughter Does the father of the colorblind daughter have to be colorblind?3) The ability to curl ones’ tongue up on the sides (T) is dominant to not being able to roll your tongue (t). a. A woman who can roll her tongue marries a man who cannot. The first child has the same phenotype as the father, what are the genotypes of the mother, father, and this child? b. What is the probability that the second child won’t be able to roll it’s tongue?