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AA-Bio Final Exam-3
mod 10 Practice Lab
| Question | Answer |
|---|---|
| A man with AB+blood is married to a woman with AB+blood. This woman has an affair with a man (Texas Cowboy type), who has type O- blood. The wife has a child with type B-blood. Could the child possibly be the cowboy's child? | Yes |
| A color-blind boy's parents and grandparents all had normal vision. What was the genotype of his maternal grandmother? | XCXc |
| A girl with normal vision whose father was colorblind marries a colorblind man. From this union, what are the chances of the couple producing a boy with colorblindness? | 50% |
| Give the genotypic and the phenotypic percentages of the offspring produced when two roan cattle are crossed. What is the genotypic percentage of the offspring? | 25% RR, 50% RW, 25% WW |
| A colorblind man has a normal brother and a colorblind sister. What is his mother's genotype? | XCXc |
| A woman whose blood type is type AB+ gives birth to a child with type AB- blood. There are five men who might have fathered the child. The blood types of all five are determined, in hopes that this will show which is the child's father. Unfortunately, only one man can be eliminated from consideration. If the following are the blood types of the men, which is the one man who can definitely be eliminated? | O- |
| Give the genotypic and the phenotypic percentages of the offspring produced when two roan cattle are crossed. What is the phenotypic percentage of the offspring? | 25% Red, 50% Roan, 25% White |
| A human disease called pseudohypertrophic muscular dystrophy is inherited as a sex-linked recessive trait- The disease is characterized by a wasting away of the muscles, beginning about age six, so that by the time affected persons are in their teens they are almost literally skin and bone they usually die before reaching adulthood. If they have a daughter, what is the chance that she will have the disease? | 50% |
| Schmoos are on the endangered species list because of a sex linked recessive disease called schmooitis. The disease has killed the best and strongest schmoos in the world. T. As a result very few schmoos get to mate, and their population is declining rapidly. If a female Schmoo that is heterozygous for the gene, mates with a normal male, what percent of their male offspring will be afflicted with schmooitis? | 50% |
| Princess Eugenie, who was a carrier for hemophilia, married her cousin Prince Albert who was a hemophiliac. What percent of their daughters will have hemophilia? | 50% |
| A man with red-green colorblindness marries a woman who is neither colorblind nor a carrier of the gene for this trait. Will 50% of their sons be colorblind? | no |
| A color-blind boy's parents and grandparents all had normal vision. What was the genotype of his maternal grandfather? | XCY |
| A man with red-green colorblindness marries a woman who is neither colorblind nor a carrier of the gene for this trait. Will all of their daughters be carriers? | Yes |
| Theoretically, if a female hemophiliac married a normal man, what percentage of their male offspring will be expected to have hemophilia? | 100% |
| Is a counterclockwise hair whorl dominant or recessive? | recessive |
| If a man with hemophilia marries a homozygous normal woman, what are the chances that they will have an afflicted daughter? | 0% |
| If a colorblind man marries a woman that is heterozygous for red-green color blindness, what is the chance that their daughter would be colorblind? | 50% |
| A man with red-green colorblindness marries a woman who is neither colorblind nor a carrier of the gene for this trait. Will all of their children be colorblind? | no |
| A girl with normal vision whose father was color-blind marries a color-blind man. From this union, what are the chances of the couple producing a boy with normal vision? | 50% |
| A colorblind man has a normal brother and a colorblind sister. What is his genotype? | XcY |
| A color-blind boy's parents and grandparents all had normal vision. What was the genotype of his Mother? | XCXc |
| A woman heterozygous for type A blood is married to a man who is homozygous for type B blood. What are the chances of them having a child with type A blood? | 0% |
| A human disease called pseudohypertrophic muscular dystrophy is inherited as a sex-linked recessive trait- The disease is characterized by a wasting away of the muscles, beginning about age six, so that by the time affected persons are in their teens they are almost literally skin If they have a son, what is the chance that he will have the disease? | 50% |
| A man with red-green colorblindness marries a woman who is neither colorblind nor a carrier of the gene for this trait. Will all of their sons be colorblind? | no |
| In four o'clock flowers, red flowers are not completely dominant to white flowers. Therefore, heterozygous flowers are pink (RW). A white flower pollinates a pink flower. What are the genotypic percentages of the offspring? | 50% RW, 50% WW |
| ugenie Princess Eugenie, who was a carrier for hemophilia, married her cousin Prince Albert who was a hemophiliac. What percent of their children will have hemophilia? | 50% |
| If a man with hemophilia marries a homozygous normal woman, what are the chances that they will have an afflicted son? | 0% |
| If a colorblind man marries a woman that is heterozygous for red-green color blindness, what is the probability that their son would be colorblind? | 50% |
| Roan color in cattle is inherited as a result of incomplete dominance. A bull that is homozygous white is crossed with a homozygous red cow. What is the phenotypic percentage of the offspring? | 100% ROAN |
| A colorblind man has a normal brother and a colorblind sister. What is his father's genotype? | XcY |
| A man with red-green colorblindness marries a woman who is neither colorblind nor a carrier of the gene for this trait. Will 50% of their daughters be colorblind? | no |
| Theoretically, if a female hemophiliac married a normal man, what percentage of their female offspring will be expected to have hemophilia? | 25% |
| A girl with normal vision whose father was colorblind marries a colorblind man. Of the union each girl baby will have what chance (percentage) of being colorblind? | 50% |
| In four o'clock flowers, red flowers are not completely dominant to white flowers. Therefore, heterozygous flowers are pink (RW). A white flower pollinates a pink flower. What are the phenotypic percentages of the offspring? | 50% Pink, 50% White |
| A girl with normal vision whose father was colorblind marries a colorblind man. Of the union what is the chance (percentage) producing a normal vision female? | 50% |
| A woman heterozygous for type A blood is married to a man who is homozygous for type B blood. What are the chances of them having a child with type B blood? | 25% |
| A man with AB+blood is married to a woman with AB+blood. This woman has an affair with a man (Texas Cowboy type), who has type O- blood. The wife has a child with type B-blood. Can this child possibly be the husband's child? | yes |
| Roan color in cattle is inherited as a result of incomplete dominance. A bull that is homozygous white is crossed with a homozygous red cow. What is the genotypic percentage of the offspring? | 100% RW |
Created by:
pfrizzel