EBK BIOLOGY
5th Edition
ISBN: 9780133954425
Author: Maier
Publisher: YUZU
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Textbook Question
Chapter 8, Problem 6LTB
A man with type A+ blood whose father had type O- blood and a woman with type AB- blood could produce children with which
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A man with blood type O (genotype ii) has a father with blood type A and a mother with blood type B. Is this man a legitimate child of these parents?
What is a possible phenotype of an individual that results from a woman with type AB blood and a man with type B blood?
Explain with diagrams.
A light-haired man has blood type O, his wife has dark hair and blood type AB, but her father had light hair. Assume dark hair (H) is dominant to light (h).
What is the probability they will have a child with dark hair and blood type A?
What is the probability they will have a child with light hair and blood type B?
What is the total number of phenotypes their children could show?
A woman homozygous for normal height, with freckles, almond-shaped eyes, small nose, and Type A blood, has a Type O mother with no freckles and a type AB father with round eyes. She is engaged to a man with achondroplasia, round eyes and medium sized nose. Unlike his father, hismother is of normal height. Both his parents have Type O blood but nobody from both sides of his family has or had freckles.
a. Write the COMPLETE genotypes of the man and the woman. Clearly indicate which genotype belongs to whom.
b. Based on their genotypes, what is the probability that they will have:
b.1 a child with Achondroplasia? b.2 a child of normal height? b.3 a child with type AB blood? b.4 a daughter with round eyes, freckles, and medium sized nose? b.5 a son with almond eyes, no freckles, and small nose?b.6 a daughter with same genotype as the woman?
b.7 a son with same genotype as the man?
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- Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the phenotype of this individual be?arrow_forwardA mother is heterozygous for the X-linked gene for colorblindness and also heterozygous for the autosomal inherited sickle cell anemia. She is married to a man who can see color normally and who is heterozygous for sickle cell trait. Using b (colorblind), B (normal color), S (normal hemoglobin), s (sickle cell), answer the following: a. What are the genotypes of the parents? b: What is the probability of having a child who is both color blind and has sickle cell anemia?arrow_forwardThe father of two children is type O+, and the mother is type A+. The children are O- and A+. Given this information, what are the genotypes of the father vs. the mother at both the “I” and “Rh” alleles? Explain your rationale.arrow_forward
- Hemophilia A is caused by a recessive X-linked allele that encodes a defective form of a clotting protein. If a affected father and a mother who is known to not be a carrier have children, what percentage of female offspring will have hemophilia?arrow_forwardTwo parents with blood types A and O have a child who has type O blood. What is the probability that their next child will be type A blood group?arrow_forwardThe mother of a family with 10 children has blood typeRh+. She also has a very rare condition (elliptocytosis,phenotype E) that causes red blood cells to be oval rather than round in shape but that produces no adverseclinical effects. The father is Rh− (lacks the Rh+ antigen)and has normal red blood cells (phenotype e). The children are 1 Rh+ e, 4 Rh+ E, and 5 Rh− e. Information isavailable on the mother’s parents, who are Rh+ E andRh− e. One of the 10 children (who is Rh+ E) marriessomeone who is Rh+ e, and they have an Rh+ E child.a. Draw the pedigree of this whole family.b. Is the pedigree in agreement with the hypothesisthat the Rh+ allele is dominant and Rh− is recessive?c. What is the mechanism of transmission ofelliptocytosis?d. Could the genes governing the E and Rh phenotypesbe on the same chromosome? If so, estimate the mapdistance between them, and comment on your resultarrow_forward
- Billy and Shiva just had a baby girl and are worried that there may have been a mix up at the hospital. Billy has A type blood, and Billy's father has O-type blood. Shiva has B type blood, and Shiva's mother had O-type blood. Their baby has O-type blood. Which of the following is true? O There must have been a mix up, as Shiva and Billy could only have a child with A, B, or AB blood. The baby could be Shiva and Billy's, as they are both hybrid for blood type and could pass the recessive allele to their child. This baby could not be theirs, as O type blood is dominant, and either Shiva or Billy would need to have O-type blood to pass it to their child. None of the above are true. 82%4 A * . F4 F5 F6 F7 F8 F9 F10 F11 & * 5 7 V 8. T. Y U F LLarrow_forwardIf a girl has blood type AB and her mother is also AB, what are the genotype(s) and corresponding phenotype(s) of any male who could not be the girl’s father?arrow_forwardIn humans, the ABO blood type is under the control of autosomal multiple alleles. Color blindness is a recessive X-linked trait. If two parents who are both type A and have normal vision produce a son who is color-blind and is type O, what is the probability that their next child will be a female who has normal vision and is type O?arrow_forward
- O. 2 Hemophilia A is an X-linked trait where blood clotting is affected due to a mutation in a clotting factor protein. Georgio has hemophilia and attends a support group where he meets Gbenga, who does not have the disease, but whose father has hemophilia. Her mother is not affected. A) If they marry, what percentage % of all their children will have hemophilia? % B) Georgio meets another woman, Maria, at the hemophilia support group. Maria also lacks the trait, but her mother has hemophilia while her father is unaffected. # 3 Would a Georgio-Maria mating provide a larger chance of having afflicted children compared to a Georgio-Gbenga mating? C) Show how you came up with your answer to B. Edit View Insert Format Tools Table 12pt ✓ 80 F3 V Paragraph ✓ $ 4 Yes or No 000 000 F4 DO LO % 5 BIUAV T² | F5 ^ MacBook Air 6 2 F6 V & 7 F7 * 8 DII F8 ( 9 DD F9 1 0 S Farrow_forwardIn humans, the ABO blood type is under the control of autosomal multiple alleles. Color blindness is a recessive X-linked trait. If two parents who are both type A and have normal vision produce a son who is color blind and is type O, what is the probability that their next child will be a female who has normal vision and is type O?arrow_forwardWhat is the probability of a child having type AB blood if one of the parents is heterozygous for A blood (Ai) and the other is heterozygous for B blood (Bi)? What other genotypes are possible for children of these parents?arrow_forward
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