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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. How can I explain why a woman had a son with normal vision and normal blood clotting. If she had four sons, and two are colorblind but have normal blood clotting and two have hemophilia but normal color vision. 2, What is the probable genotype of the woman?3. STATEMENT: Color-blindness is due to a sex-linked recessive gene. A colorblind man marries a normal-visioned woman and they have a colorblind daughter. a) What is the genotype for the man, woman and the daughter? b) The couple decides to have another child, what is the probability their child will be: i. Colorblind? ii. Have a daughter that has normal vision, no colorblindness? They know that they're having a son because they saw the sonogram with a little noticeable Schmeckle (Oscar Meyer weiner). iii.
- 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 offspring10. XBXb represents : 1. A color blind female 2. A non colorblind female who is a carrier of the trait 3. A color blind male 4. A non colorblind male5. A man who is not bald married a non bald female whose mother is bald. A. What is the chance that the couple will have a bald son? B. What is the probability that the couple will have a bald daughter? What is the chance that the couple will have a nonbald daughter? C.
- 6. A man with X-linked colorblindness marries a woman with no history of ibba colorblindness in her family. The daughter of this couple marries a normal man noitenmot and ended up hone daughter, and their daughter also marries a normal man. This mont blast couple has already had a child with color blindness. do sri ni novig A) What is the chance that next child will be color blind? B) What is the chance that this last couple will have an affected daughter? (d #50x²50 (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?1. Muscular dystrophy is an x linked recessive disorder. If two of the four offsprings have muscular dystrophy and the other two are normal, predict the genotype of the parents. The offsprins are all boys and the parents appear normal. 2. At age 50, the girl is bald and the boy is not bald. They are twins. What is the genotype of the girl? Predict the genotype of the parents of the twins.
- Can 2 albino parents have a normal child? Explain.3) if a normal sighted male has children with a carrier woman a) what proportion of their daughters will have normal colour vision? b) what proportion of their sons will be colour blind?8. One daughter from the preceding problem marries a color-blind man. a. What proportion of their sons will be color-blind? (Another way to think of this is to ask, What are the chances that their sons will be color-blind?) - b. Explain how a color-blind daughter might result from this couple.