is hitchhikers thumb recessive
If you notice a significant bend, you have inherited this trait. Hitchhiker's thumb is a recessive trait, which means that people must inherit the gene from both parents for it to manifest. People can also carry the gene without exhibiting the trait, by inheriting the gene from one parent only.ou may also hear hitchhiker's thumb referred to as âhyperextension of the thumbâ in a reference to this. There is no particular advantage or disadvantage of having a hitchhiker's thumb, and it certainly does not predispose people to hitchhiking.