One is our kin by genes, and the other is our family through love.

There are theories that almost everything is biologically based, caused by chemicals, or by genes.

Genetically, by genes and chromosomes the organism inherits from its parents.

He did point out that behavioral patterns were strongly influenced by the environment and not set by genes alone.

Not by genes alone: How culture transformed human evolution.

Pinker sees human nature as largely inscribed by indelible genes.

However, the skin of chestnut horses is still generally black, unless affected by other genes.

We have made good progress in understanding the cellular basis of this, and its control by genes.

Various forms of each of these subunits exist, encoded by different genes.