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What is the inheritance pattern for a trait that is more likely to occur in females and which is seen in every generation?

User Radouane
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Final answer:

The inheritance pattern described is most consistent with an X-linked dominant trait, which can affect females more often due to females having two X chromosomes, and can present in every generation.

Step-by-step explanation:

The inheritance pattern that is more likely to occur in females and seen in every generation could be linked to an X-linked dominant trait. Unlike X-linked recessive disorders, which typically appear more frequently in males, X-linked dominant traits can present in every generation and affect females more often because females have two X chromosomes. Such a trait does not skip generations, as males affected by the trait will pass it onto all of their daughters and none of their sons, while females can pass the trait to both sons and daughters. However, females are more likely to display the trait since they have two X chromosomes and only one copy of the dominant allele is necessary for the trait to be expressed.

Examples of X-linked disorders include color blindness, hemophilia, and muscular dystrophy, but these are generally recessive. For the trait mentioned in the question that occurs more frequently in females, one would explore X-linked dominant disorders such as Hypophosphatemic rickets or Fragile X syndrome, where females can be affected if they have one mutated gene, whereas males are affected if they inherit the mutation from their mother.

User Jazz Man
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