Home > Medical > Genetics Genetics All sections in Genetics » About Genetics » Gene Therapy » Genes and disease » Genes and Obesity » Health Tips » Nature vs Nurture » Genetics News » Paternity Testing » Stem Cells » Muscular dystrophy » Motor neuron disease » Multiple sclerosis Scientists question ethics of 'designer babies' The first experiment using CRISPR gene-editing to alter the DNA of human embryos has ignited an outcry from scientists. Seasonal changes may affect immune system Genetic testing moves into the world of employee health Scientists may have found genetic cause of Gigantism US hospital to build store of cancer genetic data See All Genetics News » What is Genetics? Genes contain instructions for how our bodies grow and develop. They can be thought of as a kind of blueprint for the body, similar to the drawings used to build a building. Genes dictate in which order amino acids are produced, which in turn determines which proteins are produced. And, it is through regulating proteins that genes wield their crucial power over human biology. Proteins play an essential role in the functioning and development of the human body. If, however, there is something wrong on a genetic level, the right proteins, or the right quantities of a specific protein, may not be produced and lead to impaired functioning or disease. Take Action Check Assess your diabetes risk » Quiz Am I at risk for COPD? » Ask CyberDoc » 10 ways to boost your metabolism World's Most Famous TB Patients advertisement About genetics Scientists question ethics of 'designer babies' Seasonal changes may affect immune system Down syndrome Huntington's disease See All About genetics » Genes and disease Woman sues after child is born with Down syndrome Prenatal testing for Huntington's disease PGD-IVF testing: what you need to know Predictive testing for Huntington's: ethical and social questions See All Genes and disease » Nature vs nurture Spanish woman gives birth to a dwarf after hen night escapade with dwarf stripper Perfect pitch in tune with genetics? Rich and attractive? See All Nature vs nurture » Stem cells New stem cell development could reverse blindness Timeline: stem cells Stem cell, hard sell Stem cell research: where it is at See All Stem cells » Gene therapy Is "CRISPR" the miracle cure? To wish upon a Stargardt miracle Gene therapy: what you should know Genetically altered athletes: fact or fiction? See All Gene therapy » Genes and obesity Gene tests solve diet riddles Genes, diet and disease More on gene tests and your diet See All Genes and obesity » Paternity testing How DNA will tell if Happy is Jannie Who’s your daddy? See All Paternity testing » From our sponsors Soothe your family’s coughs and colds Why hydration is important while exercising Taking charge of your health Man, take care of your health!