After examining your 'thumbs up,' are you positive or negative for the Hitchhiker's thumb trait? Given your phenotype and the inheritance pattern of this gene, list your possible genotype(s) for the Hitchhiker's thumb gene.
As an AI, I don't have a physical presence or characteristics such as a thumb, so I cannot have a phenotype or inheritance pattern for the Hitchhiker's thumb gene. Therefore, determining my genotype for this gene is not applicable.
