10. If B=brown eyes and b=blue eyes, and a man with brown eyes and a woman with blue eyes have a child with blue eyes, what is the genotype of the man for eye color? Assume complete dominance. * О вв О вВ or Bb О вь O brown
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- 10. 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. Rather than studying you are watching Maury. A couple comes on with a baby. The father has brown eyes, his parents, grandparents, sister, and brothers all have brown eyes. The mother has blue eyes and the baby has blue eyes. The brown eye allele is dominant to blue eye allele. Using this information, answer the following questions. Co What is the likely genotype of the father? What is the genotype of the mother? What is the genotype of the child? Refi3) 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?
- 2WGatwill botho estle of grey Sr to white fer In tha offapring? Gg gg GE gg 2:2 which rsduces to 1:1 3. What percentage of the offspring will Tall Short have a tall phenotype? 4. What percentage of the offspring will have a homozygous recessive genotype? TT x 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? dd x DdPart 1 - High School Blues Evan and Alexia had been happily married for seven years and had a delightful five-year-old son named Ryan. One day, while going through his old high school biology textbook, Evan stumbled on some troubling information. In the section on the genetics of eye color, he read that two blue-eyed parents cannot produce a brown-eyed child. This was disturbing to him because both he and Alexia had blue eyes, but Ryan had brown eyes. He and Alexia were very much in love and Evan didn't believe his wife had been unfaithful. Puzzled, he questioned his wife, who confirmed she had been faithful to him. Evan had known Alexia long enough to recognize when she was lying and detected nothing but honesty in her response. What is going on?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…
- 5. 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 (For numbers 1-9. Cross the following blood type of the wife and husband and answer the questions provided. Wife: Type A Husband: Type AB 1-3. What are the possible genotype of the offspring? А. АО, ВО В. А, ВО, АВ С. АО, ВВ D. AA,AB 4-6. What are the possible Phenotype? A. Type A and B В. Туре АВ С. Туре А, В аnd AB D. Type A, B and O 7-9. What is the percentage of type AB if the genotype you cross is AO and AB? А. 25% В. 50% C. 75% D. 0%
- 16. A couple has two children; one with a widow's peak and one without. If both parents have a widow's peak what do you know to be true? 1. Both parents are heterozygous for the trait 2. Both parents are homozygous dominant for the trait 3. Both parents are homozygous recessive 4. One parent is homozygous dominant the other is homozygous recessive7. 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. 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