If an autosomal trait skips a generation, it must be recessive; however, if an autosomal trait does not skip a generation, it two examples of sex chromosome disorders in Dayton be either recessive or dominant. We know that they father must have white eyes.
What is the probability of individual 22 being affected? The question states that the couple had two sons and one daughter, and asks the probability that one son is colorblind, one son is normal, and one daughter is colorblind. When a gene is found on a sex chromosome, it is said to be sex-linked.
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Klinefelter syndrome is not caused by anything the parents did or did not do. Additional testosterone can help a boy with Klinefelter syndrome develop bigger muscles and a deeper voice, as well as promote growth of the penis and facial and body hair. They also might have birth defects involving the hips and feet, heart and kidney problems, and intellectual disability.
Rather, they occur due to a random error in cell division. Sometimes, too, a genetic problem is X-linkedmeaning that it is associated with an abnormality carried on the X chromosome. Article Media. Gene Mutations Some genetic problems are caused by a single gene that is present but altered in some way.
Louis, MO Or fill out the form below:. Hidden category: Inserted articles. Individual 12 is a female carrier, meaning she must have the genotype , where is the affected allele. Possible Answers: None of these answers are correct.
Correct answer: The disease is X-linked dominant. What is the probability of individual 22 being affected?