2. Mendel's Laws of Inheritance
Pedigrees
4:13 minutes
Problem 52b
Textbook Question
Textbook QuestionIn humans, the ability to bend the thumb back beyond vertical is called hitchhiker's thumb and is dominant to the inability to do so (OMIM 274200; see Problem 41). Also, the presence of attached earlobes is recessive to unattached earlobes (OMIM 128900).
Check your own phenotype and those of several friends or classmates.
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