BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 14, Problem 4GP
An allele responsible for Marfan syndrome (Section
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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?
A form of hemophilia is caused by a sex-linked (X-linked) recessive gene. A phenotypically normal woman whose father had hemophilia marries a man who suffers with hemophilia. What is the probability that their first daughter will have hemophilia?
Hemophilia is another example of an X-linked disease caused when a recessive allele (Xh) is expressed. If a normal male reproduces with a heterozygous normal female, what are the expected genotypes and phenotypes? Will any of their daughters develop hemophilia?
Chapter 14 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 14 - Constructing a family pedigree is particularly...Ch. 14 - Prob. 2SACh. 14 - Prob. 3SACh. 14 - Prob. 4SACh. 14 - Prob. 5SACh. 14 - A trait that is present in a male child but not in...Ch. 14 - Color blindness is a case of ________ inheritance....Ch. 14 - Prob. 8SACh. 14 - Alleles for Tay-Sachs disease are inherited in an...Ch. 14 - Prob. 10SA
Ch. 14 - Prob. 11SACh. 14 - Prob. 12SACh. 14 - Prob. 13SACh. 14 - Klinefelter syndrome XXY can be easily diagnosed...Ch. 14 - Match the chromosome terms appropriately. ___...Ch. 14 - Does the phenotype indicated by the red circles...Ch. 14 - Human females have two X chromosomes XX; males...Ch. 14 - Somatic cells of individuals with Down syndrome...Ch. 14 - An allele responsible for Marfan syndrome Section...Ch. 14 - Both Duchenne muscular dystrophy and color...
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- Could an individual with blood type O (genotype ii) be a legitimate child of parents in which one parent had blood type A and the other parent had blood type B?arrow_forwardIn a disputed parentage case, the child is blood type O, while the mother is blood type A. What blood type would exclude a male from being the father? Would the other blood types prove that a particular male was the father?arrow_forwardJan and Michael are both carriers for the cystic fibrosis allele. If Jan and Michael have three children with the disease and then Jan becomes pregant with fratnernal twins, what is the probability that both twins will also have the disease?arrow_forward
- In a cross between an individual with Huntington disease and an unaffected individual, what are the chances their progeny will have the disease, considering that it is a dominant trait?arrow_forwardHemophilia A is transmitted by an X-linked recessive gene.With an affected father, what is the probability that a childwill have the disease? With an affected father and a carriermother, what is the probability?arrow_forwardSickle-cell disease is an autosomal recessive genetic disorder. How many mutated hemoglobin alleles do people with sickle-cell disease have?arrow_forward
- which mode of inheritance does this trait show (autosomal recessive, autosomal dominant, X-linked recessive, X-linked dominant, Y-linked, or mitochondrial). And why?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_forwardWhat are the chances of two parents who carry the gene for albinism (an autosomal recessive disorder) having a child without albinism?arrow_forward
- Is this pedigree recessive or dominant? Is it autosomal or sex-linked?arrow_forwardA man and woman are both heterozygous for the recessive allele that causes cystic fibrosis. What is the probability that their first two offspring will have the disorder?arrow_forwardHuntington’s disease, a neurodegenerative genetic disorder that typically becomes noticeable in middle age, is due to an autosomal dominant allele. Sickle cell anemia, on the other hand, is a genetic blood disorder due to a recessive allele. Mary is a carrier of the allele for sickle cell anemia but has no sign of any neurodegenerative disorder in her family. She married Paul whose father died of Huntington’s disease. His mother, however, is not inflicted with that condition. Neither of his parents exhibits sickle cell anemia. What are the genotypes of Jane and Paul? If they plan to have four children, what is the probability that: all their children will be normal? _________________________________ they will have a son with Huntington’s disease? _________________________ they will have a daughter inflicted with both conditions?________________arrow_forward
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY