can be dominant! (Conduct a search to see some of the sex-linked dominant disorders that exist). Sex- linked dominant disorders will show even if there is only one dominant allele present. Using the allele D to stand for a dominant sex-linked trait, show a cross with a woman who does not have a dominant sex-linked disorder (Xªxª) with a man that does. Will the disorder in this particular cross be more common in daughters or sons?

can be dominant! (Conduct a search to see some of the sex-linked dominant disorders that exist). Sex- linked dominant disorders will show even if there is only one dominant allele present. Using the allele D to stand for a dominant sex-linked trait, show a cross with a woman who does not have a dominant sex-linked disorder (Xªxª) with a man that does. Will the disorder in this particular cross be more common in daughters or sons?

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 6TYU: Redgreen color blindness is an X-linked recessive disorder in humans. Your friend is the daughter of...

See similar textbooks

Similar questions

In cats, the genotype AA produces tabby fur color; Aa is also a tabby, and aa is black. Another gene at a different locus is epistatic to the gene for fur color. When present in its dominant W form (WW or Ww), this gene blocks the formation of fur color and all the offspring are white; ww individuals develop normal fur color. What fur colors, and in what proportions, would you expect from the cross AaWw Aa Ww?
1. In humans, hemophilia is a sex linked trait. Females can be normal, carriers, or have the disease. Males will have the disease or not (but they won't be ever carriers) XH XH = female, normal XH Xh = female, carrier Xh Xh = female, hemophilic XH Y = male, normal Xh Y = male, hemophilic a) Show the cross of a man who has hemophilia with a woman who is a carrier. b) What is the probability that their children have the disease
3. Huntington's disease is an autosomal dominant condition in humans. The disease is often not diagnosed until adulthood, sometimes after the person has had children (and possibly passed the Huntington's allele to their children). People with Huntington's disease are usually heterozygous and not homozygous dominant. Assume that a person with Huntington's disease has a child with a person who does not have Huntington's disease. What is the probability that the child will have Huntington's disease? Support your answer with a Punnett square (on next page). 1
I. White eye cross White eye color is a recessive trait found on the X chromosome. Also called Sex-linked. This is called sex-linked. Gene symbols Xw White eye color X normal red eye color Y it’s a boy The parents were White eye color female XwXw and red eye color male XY Diagram of P1 cross: You are crossing XwY and XXw (figure out the phenotype) Diagram of F1 cross: Give expected F2 phenotypic ratio: Give expected F2 genotypic ratio:
1. Red-green colorblindness is caused by a recessive allele (x) at an X-linked gene, and albinism is caused by a recessive allele (a) at an autosomal gene. A phenotypically normal woman (Sara) has a father who is colorblind, and she knows that she is a carrier for albinism. She plans to have a child with a colorblind man (Abdul) who is also a carrier for albinism. What is the probability that Sara and Abdul's child will have one of the conditions, but not both? (C. Follow the steps below to answer this question. a) What is the cross? b) What are the target genotypes? Note: it might be useful to come back to this one and double- check it after you have completed step c, below. Break this down to the single gene level by answering the following questions: a. What is the proportion of normal to albino offspring? Show the Punnett square: b. What is the proportion of normal to colorblind offspring? Show the Punnett square: d) What is the probability that Sara and Abdul's child will have one…
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 (
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.
9. Red-green color blindness is inherited as an X-linked recessive (Xc). If a color-blind man marries a woman who is heterozygous for normal vision, what would be the expected phenotypes of their children with reference to this character? In your answer, specify in your phenotype descriptions the gender of the children. (For example, don’t just say 75% of the children would be colorblind – you would instead say 100 % of the daughters would be colorblind and 50% of the sons would be colorblind. Note that this is not a correct answer; it is just to give you an idea of how to explain the correct phenotypes of the cross.)___
4. Brown eyes are dominant over blue eyes. This is NOTA sex-linked trait. Cross a brown-eyed colorblind male (whose mother had blue eyes) with a normal blue-eyed female (whose father was colorblind). Genotype of the male Genotype of the female Genotypes Phenotypes What is the probability of getting offspring that are blue-eyed carrier females? (Remember that a carrier is a female that carries one copy of the sex-linked allele, but does not have the disease.) What is the probability of getting offspring that are blue-eyed? What is the probability of getting offspring that are blue-eyed colorblind males? What is the probability of getting offspring that are brown-eyed carrier females? What is the probability of getting offspring that are blue-eyed normal males? What is the probability of getting offspring that are colorblind?
5. A woman who is a carrier for colorblindness marries a colorblind man. The woman nas 5 nngers on each hand and the man, whose father had father had 5 fingers, has 6 fingers. (Polydactyly-have 6 fingers on each hand-is inherited as an autosomal dominant trait. What percent of their children do you expect to be colorblind with 5 fingers? man with type AB blood is married to a woman with type O blood. They have 2 natural children 01one adopted child. 'One child has type A blood, one has type B blood and the other has type O blood. Whi s adopted?
8. Consider the following phenotype for hemophilia, a recessive X-linked blood clotting disorder, in decendents of Queen Victoria. Victoria is thought to have been a carrier for the recessive hemophilia allele. What is the probability that Princess Irene is also a carrier? Albert Victoria (1819–1901) Edward Empress Victoria Leopold Princess O O L Duke of Alice Helena Beatrice II of Hesse Christian Albany Kaiser George Princess Frederick (Alexandra) Victoria Leopold Maurice Eugenie Alice Wilhelm II V Irene Alix Tsarina of Athlone Nikolas II (wife of Alfonso XIII)
1. Do a punnett square for the cross shown below between a male and female, both with Hemophilia, an X- linked recessive disease. Females are represented by a circle and males by a square. Darkened shapes mean the individual has the disease.