Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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The allele for color-blindness is carried on the X chromosome. Making color blindness (a recessive trait) an X - linked trait. A colorblind make and a carrier female for color blindness. (But is not colorblind herself) have a child.
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A) what is the % chance that their son will be color blind?
B) what is the % chance that their daughter will be color blind?
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- Please answer this quesiton.arrow_forwardD. 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?arrow_forwardSolve the following genetic problems involving X-linked inheritance. You must pick the right letter to represent the gene in the question. You must show your work using the Punnett square. 1 In humans, red-green colorblindness is a sex-linked recessive condition. Show a cross between a colorblind man and a woman with normal vision (homozygous normal). What are the possible phenotypes of the children? 18. Suppose a female child from the previous question grows up to marry a man with normal color vision. What are the possible genotypes and phenotypes of their children? 19. Hemophilia is a sex-linked trait where X" gives normal blood clotting and is dominant to the hemophilia allele Xh. a. Give the genotypes of 1) a woman with normal blood clotting whose father had hemophilia and 2) a normal man whose father had hemophilia.arrow_forward
- Please show your WORK!!!!arrow_forwardAchondroplasia, is characterized by difficulty converting cartilage to bone and thus results in shortened limbs. This trait is autosomal dominant. (A = achondroplasia allele; a = average height allele.) A husband and wife both have achondroplasia. The couple have a total 12 living children: 6 boys and 6 girls. The husband is colorblind, which is an X-linked recessive trait, and the wife believes there is a chance she is a carrier of colorblindness, since that trait runs in her family. One of the couple’s daughters and three of their sons are colorblind. (Xc = colorblindness allele; XC = normal color vision allele.) A. Is the mother a carrier of the colorblindness allele? Please explain the meaning of the term "carrier", and answer this question, based upon all of the information provided.arrow_forwardAssuming sexual reproduction and that no mutations have occurred. Please draw one possible genotype for offspring of these parents including two chromosomes with 3 alleles each.arrow_forward
- Using the pedigree below for an autosomal dominant disorder to determine the phase (which ones are recombinants and which are non-recombinants? Identify them by pedigree position (11, 112, etc.) (SLO4) 1 11 III 2/2 1/2 1/1 -O 2/12 2/2 2/2 2/2 2/2 1/2 2/2 1/2 2/2 1/2 2/2 a. 0.01 b. 0.1 c. 0.2 Calculate the LOD score for each theta below for the pedigree above. Note: keep lots of places behind the decimal until the very end for accuracy. (SLO4)arrow_forwardRecessive hemophilia, x-linked. The man has it, and his wife is a carrier. Draw a Punnett square to show this. What is the probability that their daughter has hemophilia? What is the probability that their son does?arrow_forwardPedigree 2: A. What is the most likely mode of inheritance of this disease? Choose from: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive. B State the genotypes of individuals # 1 #4. C If individual #3 has another daughter with the same partner, what is the probability that this daughter will be affected (show the disease)?arrow_forward
- Thx!arrow_forwardShow all your work please.arrow_forwardIn humans, red-green color-blindness is a recessive X-linked trait. A man with red-green color- blindness marries a normal-vision woman whose father was color-blind. As the genetic counselor, construct a Punnett square to determine the genotypic and phenotypic possibilities of their children. orange is due to heteroz means In human, assume that albinism is an autosomal recessive characteristic while hemophilia is X-linked recessive. An albino nonhemophiliac man has children with a normally-pigmented nonhemophiliac woman whose father was a hemophiliac and whose mother was albino. Calculate the phenotypes of the children they could produce.arrow_forward
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