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- 3. What are the genotypes possible for a person who has: A blood? B blood? O blood? AB blood? 4. A man with type AB blood is married to a woman also with type AB blood. Show the cross. What proportion of their children will have: A blood? B blood? O blood? AB blood? 5. A man has type B blood (genotype I³I®) is married to a woman with type O (ii) blood. Show the cross. What proportion of their children will have: 1. A blood? 2. B blood? 3. O blood? 4. AB blood? 6. A woman with type A blood (genotype I^i) is married to a type B person (genotype Iºi). Show the cross. What proportion of their children will have: A blood? B blood? О blood? AB blood?5. A woman with type AB blood marries a man with type homozygous type B blood. What are the phenotype and genotype ratios of the offspring? 6. Hemophilia is a sex linked recessive trait. If a carrier woman marries a normal man. The couple gives birth to a boy. What are the chances that this child will have hemophilia? Make sure use XX or XY here) 7. The height of a certain plant is a result of polygenic inheritance involving two pairs of genes. Draw a Punnett square to show the result of a cross between a tall (AABB) plant and a short (aabbi. What is the phenotype ratio? 8. What is a mutation? 9. What is sickle cell anemia? 10. What is hemophilia? 11. What is a pedigree? 12. Draw a pedigree to represent the following. Shaded symbols should represent individuals with hemophilia: A man with hemophilia marries a normal woman. They have 3 children, two normal boys and a girl who is a carrier. The girl marries a normal man and they have two boys and two girls. One of the girls is a carrier…Homozygous or Heterozygous 1. Bb 2. FF 3. DD 4. Rr Genotypes and Phenotypes 5. Tt 6. Qq 7. Long nose 8. HH 9. Brown hair
- 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 (4. Mr. Salazar has Type A blood while Mrs. Salazar has Type B. They have four children. Bobbie has Type A, Gabbie has Type B, Alex has Type AB, and Teddie has Type O. What are the genotypes of all six people in this family? NOTE: The ABO blood type gene has three alleles. IA and IB are codominant; i (for Type O) is recessive to both.
- 1. Study the given alleles. Write the correct phenotype for each genotype. X – normal Gen otype xC - Color-blind Phenotype XX XY XXC xCY 2. Study the given alleles. Write the correct genotype for each phenotype. xH - Hemophiliac Phenotype X- normal Gen otype Hemophiliac female Hemophiliac male Normal female carrier of the gene Normal male Normal female 28 3. Determine the genotype and phenotype of the offspring. A color-blind mother (XCx) married a normal sighted (XY) father. Genotype: Phenotype: Genotype: Phenotype: Genotype: Genotype: Phenotype: Phenotype: a. There are b. There are c. There are d. There are % normal sons. % normal daughters. % color-blind sons. % color-blind daughters. % normal female, carrier of the disorder. or or or or e. There are or3. The ILRN gene encodes a protein that acts as an antagonist to interleukin receptors. This gene has three alleles represented as A*1, A*2, and A*3. In a study on the relationship between genotype and chronic pain sensitivity, data was collected on the ILRN genotype of 100 people as follows: 50 A*1/A*1 26 A*1/A*2 4 A*1/A*3 10 A*2/A*2 A*2/A*3 A*3/A*3 0 10 A. Calculate the frequency of each allele. B. Determine how many people there would be of each genotype if the population were in Hardy- Weinberg equilibrium and use the Chi-squared test to evaluate how well these expectation fit the observed data3. Eratosthenes is type A and Roimela is type O. They have three children named Cefas, Patrick, and Ysabel. Cefas is type O, Patrick is type A, and Ysabel is type AB. Based on these information, determine if they have an adopted child. If they do, who would it be? Why? Character/s: Alleles: ở Genotype: X ? Genotype: Cross: Genotype/s: Phenotype/s: Genotypic Ratio: Activ Go to S Phenotypic Ratio:
- Additional problems (Chapter 4 (Extension of Mendelian Inheritance): 1. In rabbits, coloration of the fur depends on alleles of the gene c. From information given in the chapter, what phenotypes and proportions would be expected from the following crosses: a) CC X cc b) Cc x Cc c) Cc x Ccch d) cc x cc 2. From the information given in the chapter about the ABO blood types, what phenotypes and ratios are expected from the following matings: a) type AB x type O b) Type AB x type B individual whose mother is type O c) Type O x Type A individual whose father is type O d) Type Ox type O 3. A woman with type AB blood type gave birth to a baby with type B blood. Two different men claim to be the father. One has type A blood and the other type B blood. Can the genetic evidence decide in favor of either? 4. You have been studying a trait that seems to be present in every generation within a particular family. Further, you have observed that every affected offspring has at least affected parent…1. Study the given alleles. Write the correct phenotype for each genotype. X– normal Genotype XC – Color-blind Phenotype XX XY XCXC www m XX www w ww w 2. Study the given alleles. Write the correct genotype for each phenotype. X- normal Genotype хн- Hemophiliaс Phenotype Hemophiliac female Hemophiliac male Normal female carrier of the gene Normal male Normal female1. Is this trait autosomal recessive or autosomal dominant? 2. What is the genotype of II-3? 3. Circles that are shaded in means the individual has the condition. True or False? 6 4. The horizontal line connecting Il-4, I-5, and Il-6 means they are 5. What is the genotype of III-2? 4 6. Parents 3 and 4 in the first generation are looking to have a fourth child. What is the probability that the new baby would have the condition?