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the russian blue is a rare breed of cat that is susceptible to developing cataracts on the eyes. scientists hypothesize that this condition is inherited as a result of a mutation. figure 1 shows a pedigree obtained in a study of cats owned by members of the russian blue club in sweden.
a. A recessive mutation on the X chromosome
b.A recessive mutation on a somatic chromosome
c. A dominant mutation on the X chromosome
d.A dominant mutation on a somatic chromosome

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The pedigree obtained in this study of cats owned by members of the Russian blue club in Sweden shows that this condition is inherited as a result of a recessive mutation on a somatic chromosome, option B.

How does a mutation occur in somatic cells?

Somatic mutations are a normal part of aging and occur throughout the life cycle of an organism, either spontaneously as a result of errors in DNA repair mechanisms or as a direct response to stress. Early-developmental mutations can cause mosaicism within the gene line, affecting organism development.

Because recessive inheritance requires both genes in a pair to be abnormal for disease to occur. Carriers are people who have only one of the two defective genes. These people are frequently unaffected by the condition. They can, however, pass on the abnormal gene to their children.

Learn more on somatic mutation here: https://brainly.com/question/13000755

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