EE³E²E4Clear my choiceWhich of the following statements best describes the inheritance pattern of an X-linked dominant disorder?a. Two unaffected parents can produce an affected child.b. Only daughters of an affected man are affected.c. Only sons of an affected female are affected.O d. Only individuals who are homozygous for the mutated gene are affected.Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is a rare inherited disorder that causes suWhich of the following pedigrees shows the inheritance pattern of ARVC/D?O a.OTO

Pedigree is a family chart showing the inheritance of a particular trait through several generations…

Which of the following statements best describes the inheritance pattern of an X-linked dominant disorder? a. Two unaffected parents can produce an affected child. b. Only daughters of an affected man are affected. c. Only sons of an affected female are affected. d. Only individuals who are homozygous for the mutated gene are affected.

Which of the following statements best describes the inheritance pattern of an X-linked dominant disorder? a. Two unaffected parents can produce an affected child. b. Only daughters of an affected man are affected. c. Only sons of an affected female are affected. d. Only individuals who are homozygous for the mutated gene are affected.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter4: Pedigree Analysis In Human Genetics

Section: Chapter Questions

Problem 22QP: Analysis of X-Linked Dominant and Recessive Traits In the eighteenth century, a young boy with a...

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Which of the following statements is true regarding the inheritance of a human X-linked recessive trait if the mother is a carrier and the father is affected? a) At least one affected individual will be present in every generation b) all sons will be affected c) None of the offspring will be affected d) all daughters will be affected e) on average, half of the daughters will be affected and half of the sons will be affected
.Certain forms of human color blindness are inherited as X-linkedrecessive traits. Hemizygous males are color-blind, but heterozygous females are not. However, heterozygous females sometimeshave partial color blindness.A. Discuss why heterozygous females may have partial color blindness.B. Doctors identified an unusual case in which a heterozygousfemale was color-blind in her right eye but had normal colorvision in her left eye. Explain how this might have occurred.
D. If a man is color-blind, which parent did he inherit the gene from? Explain your answer. E. Which parent does a man get all his x-linked genes from? F. If a woman is color-blind, what do you know about the genotypes and phenotypes of her parents? G. Are men more likely than women to get a genetic disease which is x-linked and dominant? Are they more likely to get a disease that is x-linked and recessive? Explain your answers. H. Can a man with normal color vision have a colorblind daughter? Explain your answer. I. Which parent determines the sex of a child?
For an X-linked recessive disease where the father is unaffected: a) An affected father cannot pass the disease mutation on to his daughters. b) all affected mothers will be heterozygous at the trait locus. c) a homozygous affected mother will have only affected male offspring. d) a homozygous affected mother will have only affected female offspring. e) if a homozygous affected mother mates with an unaffected father, 75% (on average) of the male offspring will be affected.
Choose correct option and do explain. Considering an X-linked dominant trait, if an affected woman and an unaffected man decide to have children, which of the answer choices is possible for their children? a. All of their sons are expected to show the dominant trait. b. Their daughters are expected be heterozygous for the gene. c. Their daughters are not expected to show the dominant trait. d. Their sons are expected to be heterozygous for the gene. e. All their children, whether male or female, are expected to show the dominant trait.
I will be adding two questions here because I asked two of the same questions twice by accident earlier. A man and a woman do not have hemophilioa, but the womans father did. (Hemophilia is X-linked recessive). a) What is the probability that they will have a child with hemophilia? b) Is it possible for any of their daughters to be affected? Explain. A cross between a horse homozygous for red hair and a horse homozygous for white hair results in offspring with the coat colour called roan. When you look at the fur of the roan offspring you see both red and white hairs. What type of inheritance best explains this? a) blending inheritance b)codominance c)incomplete codominance d)multiple alleles
Answer with reason: When counseling parents about genetic transmission of an X-linked disorder, which concept does the nurse keep in mind? a. An X-linked disorder can be traced through the paternal lineage. b. A female can only pass an X-liked disorder to a son c. A male can pass an X-linked mutation to a son or a daughter d. A male with a mutation in an X-linked gene will manifest the disease. 5) The nurse explains to parents that if both of them are carriers of an autosomal recessive genetic mutation, the chance of each child NOT inheriting the disease (affected) is a. 25% c. 0% b. 75% d. 50% 0
Hemophilia is an X-linked recessive disease. A hemophilic man marries a woman who is not a carrier of the disease. (a) Draw a Punnett square showing the genotypes of their children. (b) What are the chances that their daughters will be carriers of the disease? (c) What percentage of their children are likely to have the disease?
A man who has color blindness and type O blood has children with a woman who has normal color vision and type AB blood. The woman’s father had color blindness. Color blindness is determined by an X-linked gene, and blood type is determined by an autosomal gene. a. What are the genotypes of the man and the woman? b. What proportion of their children will have color blindness and type B blood? c. What proportion of their children will have color blindness and type A blood? d. What proportion of their children will be color blind and have type AB blood?
Duchenne muscular dystrophy (DMD), marked by muscular degeneration, results from an X- linked recessive gene. Thus, a female who is heterozygous for this gene and does not have the disease can be a carrier. What kind of offspring can you expect from a DMD-affected male and a carrier female? Can there be a carrier male?
Y-linked Amelogenesis imperfecta (A), a congenital disorder that affects the formation of the teeth enamel making affected individuals at higher risk for dental cavities and related problems. X-linked dominant hypophosphatemia (H), a form of rickets or vitamin D deficiency that affects the bones which causes pain, osteoarthritis, and abnormal shapeabnormal shape. X-linked recessive progressive Duchenne muscular dystrophy (m), a muscular disorder, leading to an irreversible gradual wasting of skeletal muscles. Hannah, the same as her mom, is heterozygous for both X-linked traits. While her dad is suffering from both muscular dystrophy and hypophosphatemia. Hannah's husband, Joey has a mom suffering from musculardystrophy regardless of having normal bone conditions. His dad has been blessed with strong muscles and bones, however, he is suffering from amelogenesis imperfecta. What are the complete genotypes of each person?a. Joey's momb. Joey's dadc. Joeyd. Hannah's mome. Hannah's dad f.…
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?