a logical prediction is that compared with rats born to mothers fed a healthy diet, the hnf4a gene in rats born to mothers fed a protein poor diet would

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.