A person with sickle-cell anemia marries a healthy person without sickle cell anemia. They have a child experiences shortness of breath in situations where oxygen supply is low. When a blood sample is taken from the child it is found that half of his red blood cells are round and half are sickle shaped. In the context of oxygen carrying capacity sickle anemia shows which of the following inheritance patterns? Group of answer choices A. epistasis B. codominance C. additive inheritance D. complete dominance E. incomplete dominance

A person with sickle-cell anemia marries a healthy person without sickle cell anemia. They have a child experiences shortness of breath in situations where oxygen supply is low. When a blood sample is taken from the child it is found that half of his red blood cells are round and half are sickle shaped. In the context of oxygen carrying capacity sickle anemia shows which of the following inheritance patterns? Group of answer choices A. epistasis B. codominance C. additive inheritance D. complete dominance E. incomplete dominance

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter20: Chromosomes And Human Genetics

Section: Chapter Questions

Problem 7CT: The following pedigree shows the pattern of inheritance of red-green color blindness in a family....

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Sickle cell anemia is caused by an individual carrying two recessive copies of the hemoglobin gene (hemoglobin gene is labeled Hb, and the recessive version is Hbs). Thus, to have sickle cell anemia, a person must have the genotype HbSHbS. A person that is HbAHbA carries two copies of the normal hemoglobin gene and does not have sickle cell anemia. A person that is heterozygous (HbAHbS) produces enough normal hemoglobin to not have sickle cell anemia but is also resistant to malaria. People that are heterozygous are called “carriers” because they carry the recessive allele but do not express the recessive phenotype. a. A couple are both resistant to malaria but do not have sickle cell anemia. Draw a Punnett square to represent this cross. b. What is the probability that the couple has three children where one child does not have a recessive allele, one child is resistant to malaria and does not have sickle cell anemia, and one child has sickle cell anemia?
Wavy hair is intermediate to straight and curly hair. Similarly, medium-sized nose may be inherited if one parent has a large nose and the other parent has a small nose. James has wavy hair, large nose, and type A blood. His father is type O. What is the complete genotype of James? __________________ Nicole has straight hair, medium-sized nose, and type AB blood. What is the complete genotype of Nicole? __________________ Should James and Nicole marry, what is the probability that they will have a: Daughter with the same traits as Nicole? ______________ Son with the same traits as James? ____________________ Child with curly hair, small nose, and type O blood? _______
The attached image is a pedigree of a family with a history of sickle cell anemia (the individuals with the filled-in symbols have the disease and no new mutations are occurring in any individual). Sickle cell anemia is inherited in an autosomal recessive manner. What is the probability that the individual with the question mark (?) will get the disease? a) 1/4 b) 1/2 c) 2/3 d) 1
Based on the observed inheritance pattern and ratio of phenotypes, what are the genotypes of the affected children? Select an answer and submit it. For keyboard navigation, use the up/down arrow keys to select an answer. a) If c- = Cystic Fibrosis, the children are c-/c-. b) If c- = Cystic Fibrosis, the children are C/C. c) If c- = Cystic Fibrosis, the children are C/c-. d) If c- = Cystic Fibrosis, the children are C.
Marfan’s syndrome is an example of pleiotrophy where individuals with a copy of the dominant allele have skeletal disorders, mitral valve prolapse and characteristic slender, loose joints. If Abraham Lincoln had a marfanoid disorder which he inherited from his mother, what are the chances he passed this trait on to his offspring? Consider that Mary Todd Lincoln, his wife, was 5’2”. please include a punnett square
The last Emperor of Russia, Nicolas II, was married to Empress Alexandra, and they had fivechildren, Olga, Tatiana, Maria, Anastasia, and Alexis. Alexis was the only one who was afflictedwith hemophilia or the royal bleeding disease; all other members were normal. Research on this medical condition and determine the mode of inheritance. If only Prince Alexis was afflicted with the disease, determine his genotype. What could be the genotypes of the Emperor and Empress? Is it possible that each daughter could have been a carrier?
Porphyria is a genetic disorder caused by the inability to properly metabolize a component of hemoglobin. King George III is suspected to have been afflicted with this disorder. Assume that both George and his Queen suffered from this disorder and they had one afflicted child and one normal child. Is porphyria inherited in a dominant or recessive fashion? What must be the genotype of both George and his Queen? Using punnett square, show ALL work used to achieve your answer.
Wavy hair is intermediate to straight and curly hair. Similarly, medium-sized nose may be inherited if one parent has a large nose and the other parent has a small nose. Wendel has wavy hair, large nose, and type A blood. His father is type O. What is the complete genotype of Wendel? Krisha has straight hair, medium-sized nose, and type AB blood. 2. What is the complete genotype of Krisha? Assuming that Krisha and Wendel would marry, what is the probability that they will have a: 3. Son with the same traits as Wendel? 4. Daughter with the same traits as Krisha? 5. Child with curly hair, small nose, and type O blood?
A woman with keratosis, a skin condition caused by a rare dominant allele, marries a man with normal skin. If they have a son, what is the probability that he will have normal skin?
What mode of inheritance is exhibited? ____________________________________ Using the letters, Aand a, give the genotype of the following individuals: I1: __________ II4: __________ III9: __________ I2: __________ II5: __________ III14: __________ II3: __________ II8: __________ IV18: __________
Given that the normal hemoglobin allele (H) is dominant to the sickle-cell allele (h), each time two Hh individuals have a child together, what is the chance that the child will have sickle-cell disease? (a) 0% (b) 75% (c) 25% (d) 50% (e) 100%
Using the given pedigree chart, suppose individuals III-1 and III-2 are expecting their sixth child. What is the chance (percent) that the sixth child will have the sickle cell trait?