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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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A husband and wife have normal vision, although both of the couple's fathers are red-green color-blind, an inherited X-linked recessive condition. What is the probability that the couple's first child will be a normal son? Enter your answer as a fraction or a whole number. Hint: Remember, humans determine sex via the XX = female, XY = male system. Think about the probability of having either a son or a daughter and the probability of having red - green color blindness.
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- Hemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition. What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?) 0% 1/4 or 25% 2/4 or 50% 3/4 or 75% 4/4 or 100%arrow_forwardA human female who is heterozygous for the recessive, sex-linked trait causing red-green color blindness, marries a normal male. What proportion of their male progeny will have red-green color blindness?arrow_forwardOcular albinism is a sex-linked recessive disease carried on the X chromosome. A female carrier mates with a male with this disorder. What percentage of all of their children is predicted to be an albino female? 1) 0% 2) 25% 3) 50% 4) 75% 5) 100%arrow_forward
- Red-green colorblindness is inherited in an X-linked recessive pattern in humans. A colorblind man and a woman with normal vision have four children, and one of them is a colorblind male. Does the mother have to be a carrier in this case? (Yes or No) What is the probability of the next child in this family being both colorblind and male? No, 25% Yes, 25% No, 50% Yes, 50%arrow_forwardPlease complete punnet square onlyarrow_forwardHemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele for normal blood clotting, XH, is dominant over the allele for hemophilia, Xh.An unaffected female that is not a carrier mated with an affected male. Which of the following rows identifies the possible genotypes of the offspring?arrow_forward
- Jenny's maternal uncle (her mother's brother) is affected with a rare x-linked disease, but no one else in the family is. What is the percent chance that Jenny is a carrier of this disease? Enter a whole number between 0 and 100. For example, if you enter 33, it means you think there is 33% chance that Jenny is carrier.arrow_forwardMen are more likely to display an X-linked recessive disorder than are women. Why do you think this is true?arrow_forwardWhat is/are the possible genotype(s) of this cat for the Sex-linked Red gene? If this cat only has two sex chromosomes, what sex is this cat? Q67 Sex-linked red gene: determines red or not red color; located on X chromosome 2 alleles: Xo (red color) X+ (non-red color) MacBook Airarrow_forward
- Hemophilia is an X-linked recessive disease that prevents blood clotting. If a woman who is heterozygous for the hemophilia alleles mates with a normal man, what proportion of their daughters and sons would have hemophilia? X= hemophilia X chromosome XH= normal X chromosome Y = y chromosome Fill in the Punnett square.HXarrow_forwardA mother and father have four children; two sons and two daughters. What is the probability that the brothers share the same Y chromosome? 100% 25% 50% 0%arrow_forward
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