in the/somebody's blood/genes(redirected from gene)
Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia.
Related to gene: gene expression, gene therapy, DNA
in the blood
Innate, as of a skill or quality. That type of passion can't be taught—it's in the blood.
in the bloodand in one's blood
Fig. built into one's personality or character. John's a great runner. It's in his blood. The whole family is very athletic. It's in the blood.