What are your alleles for the hitchhikers thumb phenomenon?

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1034629

2026-07-11 10:50

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The hitchhiker's thumb phenomenon, characterized by the ability to bend the thumb backward at an angle greater than 90 degrees, is often associated with a genetic trait influenced by alleles. Specifically, it is typically linked to the presence of a dominant allele, which allows for this increased flexibility. If an individual has at least one copy of the dominant allele, they are likely to exhibit hitchhiker's thumb, while those with two recessive alleles will not. Therefore, a person's alleles for this trait can be either dominant (hitchhiker's thumb) or recessive (normal thumb).

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