genes

Topics in this book include genetically modified food, epigenetics, stem cells, and xenobiology.

Are your eyes brown? Blue? Green? Why are they the color that they are? Heredity takes a close look at the genes and traits passed down from mothers and fathers. Learn about dominant and recessive genes and how they determine unique characteristics.

Did you know that most of our bodies' cells contain about 6 feet (2 meters) of DNA? Learn how DNA and genes determine each unique trait of plants and animals by taking a close look at the make up and structure of DNA.

As scientists continue to make genetic breakthroughs, society inches ever closer to confronting the stuff horror movies are made of. Cloning a mourned pet is simply strange, but the thought of human cloning is terrifying. Manipulating genes to reduce genetic disease is encouraging only until we consider the ethical implications of potentially creating a master race. Genetically engineering crops and animals can address many problems like disease, climate change, and world hunger, but altering the environment could have catastrophic results for Earth. Articles presenting these issues from persuasive points of view help readers understanding the controversies surrounding genetic engineering today.

Describes the types of mutations that can happen to animals and plants.

Gene therapy is a perennial hot-button issue in today's news cycle. This relatively new and experimental field involves inserting genetically altered genes into cells to replace defective genes. It can treat genetic disorders or provide a specialized disease-fighting function. The multifaceted topics surrounding gene therapy DNA, techniques, challenges, and risks are presented in this clear, understandable text, so that readers can grasp the ramifications and ethical concerns of this incredible technology. While gene therapy is currently only being tested for the treatment of diseases that have no cures, genetic engineering for many ailments and conditions is a very real possibility of the near future.

Bill Nye the Science Guy answers questions about genes, and conducts an experiment that shows viewers how to determine if their physical characteristics are similar to those of their parents.

Examines the way DNA makes twins and siblings look the same or similar to one another, as well as what DNA is and how it makes an organism what it is.

Examines the process of evolution and genetics, focusing on genetic engineering.