“Hair color is a bit more complex than dominant and recessive and is related to variants in the MC1R gene,” says Dr. Kaplan. “There are nine variants most commonly described in this gene.

"The color of a mammal's fur is intrinsic to its identity—knowing the molecular reasons why is important to relate it to other animal systems, particularly for understudied marsupials," she says ...

The team finally traced the color change to a transposon or “jumping gene” located in the cortex gene. “It’s this huge chunk of DNA that doesn’t itself code for anything, but somehow disrupts the ...

Epistasis describes how gene interactions can affect phenotypes ... For instance, what if both of the loci in Mendel's experiment affected seed color? When two genes are involved in the outcome ...