Читать книгу You: Having a Baby: The Owner’s Manual to a Happy and Healthy Pregnancy - Michael Roizen F. - Страница 26
1 Nice Genes A New Twist on Genetics Teaches Us How a Baby Really Develops
ОглавлениеBack in tenth-grade biology class, you were probably taught—as were we—that the unique combination of genes you received from your mom and dad (your genotype) was responsible for everything that followed: the color of your eyes, the size of your feet, your love of lasagna, your hatred for all eight-legged and no-legged creatures. To a certain extent, that’s true, but over the past few years, studies have suggested that classical genetics may be only part of the picture. It’s not just your genes that determine who you are, but which of those genes are turned on, or expressed, and to what degree they are expressed—a cutting-edge field called epigenetics. While you can’t control which genes you pass on to your child, you do have some influence over which genes are expressed, affecting what features are seen in your baby (his phenotype). In this chapter, after giving you a brief refresher on the basic biology of what happens after your life-changing evening of romantic rasslin’, we’re going to introduce you to a new subject:YOU-ology—how what you eat, breathe, and even feel can affect the long-term health of your child.