4. Brown eyes are dominant over blue eyes. This is NOT a sex-linked trait. Cross a brown-eyed colorblind male (whose mother had blue eyes) with a normal blue-eyed female (whose father was colorblind). a) What is the genotype of the male? b) What is the genotype of the female? c) 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.) d) What is the probability of getting offspring that are blue-eyed? e) What is the probability of getting offspring that are blue-eyed colorblind males? f) What is the probability of getting offspring that are brown-eyed carrier females? g) What is the probability of getting offspring that are blue-eyed normal males? h) What is the probability of getting offspring that are colorblind?

4. Brown eyes are dominant over blue eyes. This is NOT a sex-linked trait. Cross a brown-eyed colorblind male (whose mother had blue eyes) with a normal blue-eyed female (whose father was colorblind). a) What is the genotype of the male? b) What is the genotype of the female? c) 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.) d) What is the probability of getting offspring that are blue-eyed? e) What is the probability of getting offspring that are blue-eyed colorblind males? f) What is the probability of getting offspring that are brown-eyed carrier females? g) What is the probability of getting offspring that are blue-eyed normal males? h) What is the probability of getting offspring that are colorblind?

Name: 4.Brown eyes are dominant over blue eyes. This is NOT a sex-linked tr
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: 4.Brown eyes are dominant over blue eyes. This is NOT a sex-linked trait. Cross a brown-eyed colorblindmale (whose mother had blue eyes) with a normal blue-eyed female (whose father was colorblind).a) What is the genotype of the male?b) What is the

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 17CTQ: Can a male be a carrier of red-green color blindness?

See similar textbooks

Similar questions

3. STATEMENT: Color-blindness is due to a sex-linked recessive gene. A colorblind man marries a normal-visioned woman and they have a colorblind daughter. a) What is the genotype for the man, woman and the daughter? b) The couple decides to have another child, what is the probability their child will be: i. Colorblind? ii. Have a daughter that has normal vision, no colorblindness? They know that they're having a son because they saw the sonogram with a little noticeable Schmeckle (Oscar Meyer weiner). iii.
3. Red-green color blindness (b) is a recessive sex-linked trait. A colorblind male marries a normal female. Their daughter is colorblind. a)What are the genotypes of both parents and the daughter? b) Can a colorblind father have daughters who are not colorblind? Explain.
3. Pattern baldness is a recessive sex-linked trait. Jake has a full head of hair. His wife Jeannie is heterozygous for the pattern baldness gene. A) What is Jeannie's phenotype? Why? B) What are the chances that their children will have pattern baldness?
2. Hemophilia is an X linked recessive trait. There is a woman who is a carrier for hemophilia and marries a man with hemophilia. a) Complete the Punnett Square (it is a google drawing so you will have to double click it to go to the drawing and type in and around the square. Hold the CONTROL (or Command) button and press the PERIOD button to write a superscript/exponent.) b) What are the possible genotypes of the children? c) Could any of their children have hemophilia? If so, would the child be male or female? Explain your reasoning.
Additional problems (Chapter 4 (Extension of Mendelian Inheritance): 1. In rabbits, coloration of the fur depends on alleles of the gene c. From information given in the chapter, what phenotypes and proportions would be expected from the following crosses: a) CC X cc b) Cc x Cc c) Cc x Ccch d) cc x cc 2. From the information given in the chapter about the ABO blood types, what phenotypes and ratios are expected from the following matings: a) type AB x type O b) Type AB x type B individual whose mother is type O c) Type O x Type A individual whose father is type O d) Type Ox type O 3. A woman with type AB blood type gave birth to a baby with type B blood. Two different men claim to be the father. One has type A blood and the other type B blood. Can the genetic evidence decide in favor of either? 4. You have been studying a trait that seems to be present in every generation within a particular family. Further, you have observed that every affected offspring has at least affected parent…
2) A man with a recessive sex linked allele for colour blindness marries a woman who has normal vision but is a carrier of the recessive allele. What proportion of the offspring would be expected to ...... a) be male b) have normal vision c) be colour blind
9. In fruit flies, the gene for tan body color (T) is completely dominant over the gene for ebony body color (t). The gene for red eyes is dominant over the gene for white eyes and is a sex-linked trait. A tan female with red eyes (heterozygous for both traits) is crossed with a homozygous ebony male with white eyes. A) Write out the genotypes of two parents. Remember that eye color is sex- linked! Female: Male: B) Set up and fill out a punnett square for this cross. C) What is the probability of producing a fly that is an ebony male with white eyes?
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.
14. ii) If Individuals #6 and #7 have another daughter what are the chances that she will be affected. 1 II IV a) The pedigree above shows the passing on of colorblindness. What sex is MOST likely to be carriers of colorblindness? b) Why does individual IV-7 (a female) have colorblindness? c) Why do all the daughters in generation II carry the colorblind gene? d) List two h generation colorblind males. 15. Explain sex linked inheritance with examples. 16. Explain what happens during these following sicknesses and why it happens? i) Sickle cell anemia i Hemophilia 17. What do you understand by the term "Multiple Alleles"? Define the followings: Trait true breeding cross P generation F1 generation monohybrid cross F2 generation dominant recessive law of segregation genotype phenotype homozygous heterozygous test cross dihybrid cross law of independent assortment pedigree autosomal recessive Punnett square autosomal inheritance autosomal dominant
1. A) Apply the concept of sex linkage to explain why color blindness is more prevalent in men than in women. B) Mary is concerned that she may be a carrier for hemophilia, a sex-linked condition located on the X chromosome. Mary is married to John, who doesn't have hemophilia. Assuming Mary is a carrier, what are the genotype ratios expected for Mary and John's kids (specify for boys and for girls)? C) Mary and John have 2 boys, none of them has hemophilia. Can we use this fact as proof that Mary does not carry the allele for hemophilia? Explain your argument.
5. In humans, one type of color-blindness, an inability to distinguish between red and green, is inherited as a sex-linked character on the X chromosome. It is recessive. a) If a color-blind man marries a homozygous normal woman, what chance is there for the children to be color-blind? b) A normal man marries a color-blind woman. Which, if any, of their children are likely to be colorblind? c) Why is it so commonly believed that women cannot be color-blind?
A man and his wife are both heterozygous for brown eyes. They have ix children all of whom have blue eyes? A) How is it explained? B) What are the chances that their next child will have brown eyes? C) What are the chances that their next child will have blue eyes.