A scientist wants to insert a gene from a plant that confers…

A scientist wants to insert a gene from a plant that confers herbicide resistance into a bacterium. The bacterial cell’s ribosomes and other gene expression machinery will then produce the plant protein. This process is possible because of which fundamental concept?

In mice, a diet rich in methyl groups (e.g., rich in folic a…

In mice, a diet rich in methyl groups (e.g., rich in folic acid) leads to the methylation of the agouti gene that controls coat color and obesity. A mother mouse fed this diet generally produces more offspring with brown fur who are thin, and fewer offspring with yellow fur who are obese. What does this example illustrate?