text: anyone know anything about how height is hereditary, or about mendel? adult height in humans is at least partially hereditart; tall parents tend to have tall children.  but humans come in a range of sizes, not just tall and short.  explain an extension of mendel's model that could produce the hereditary variation in humans. height is definitely partly controlled by genes, but it is controlled by several genes.  mendel showed that genes can be dominant or recessive, and humans have two genes for every gene "location."  traits can  and usually are controlled by multiple gene "locations"