Science Education: Genetics
Understanding the genetic material DNA and RNA, heredity and variation—that's genetics. Studies in genetics focus on questions like:
- What regulates the activity of genes?
- How does a single fertilized egg develop into a complete organism with hundreds of different cell types?
- What can we learn about ourselves by studying organisms like bacteria, yeast and fruit flies?
Follow the links below to learn more about genetics, including recent discoveries, and read profiles of researchers working in this field.
The New Genetics
Explains the role of genes in health and disease, the basics of DNA and its molecular cousin RNA, and new directions in genetic research.
Computing Genetics from Computing Life
Explores how computing advances are helping scientists uncover new details about diseases, drug treatments and even crimes.
Living Laboratories Poster
Learn about model organisms used in research.
Our bodies keep time with the help of 24-hour "circadian" rhythms, which are directed by genes. Get answers to common questions about how these rhythms work and affect our lives.
RNA interference is a recently discovered mechanism that silences genes. Learn how it works—and how we can harness it to treat disease and study genetic processes.
We're learning important things about health and disease by studying genes in individuals and populations.
Using Model Organisms to Study Health and Disease
The mustard plant, roundworm and fruit fly have taught us a lot about ourselves. Learn more about why scientists study these and other simple organisms.
Neanderthal DNA—Still Among Us
Many traits in present-day people—including skin characteristics and susceptibility to various diseases—can be traced to Neanderthal DNA.
One Mutation Leads to Another-At Least in Yeast
Incapacitating a single gene in yeast cells spurred secondary mutations in genes associated with cancer in humans.
Stop the (Biological) Clock
A proof of concept experiment locked algae into continuously expressing its daytime genes-and increased the organism's production of potentially useful biomolecules.
Resetting Our Clocks: New Details About How the Body Tells Time
Piecing together the molecular mechanisms of biological clocks is leading to a better understanding of the intricate relationship among our clocks, circadian rhythms and physiology.
Evolution and Health
While Charles Darwin's theory laid the groundwork, ongoing studies have deepened our understanding of evolution, including how it relates to health.
Learning About Cancer by Studying Stem Cells
Researchers studying stem cells shed light on how pancreatic and esophageal cancer cells arise and develop into tumors.
A Light on Life's Rhythms
Neuroscientist Cara Altimus studies circadian rhythms in mice to learn how the human brain regulates bodily functions.
The Right Fit
Clinical pharmacist Julie Johnson researches how genes affect the body's response to medicines.
Mountains and Mouse Genes
Biostatistician Gary Churchill studies mouse genetics to link gene combinations to traits.
Cool Video: Re-creating Kidneys
By studying how planarians grow back lost tissue, scientists might move one step closer to replacing diseased or injured human tissue and cells.
Malaria: Natural Selection and New Medicine
Researchers explain the rise of drug-resistant malaria and strategize how to develop vaccines against the disease.
This movie, which shows groups of genes turning on (red) or off (green), helps researchers visualize and interact with experimental data.
Cool Image: Tick Tock, Master Clock
A small molecule called VIP, shown in green, enables time-keeping neurons in the brain's central clock to coordinate daily rhythms that influence sleep patterns, hormone levels, body temperature and appetite.
Healing Wounds, Growing Hair
All the hair you can see on your body is non-living, made up of "dead" cells and protein, and it sprouts from living cells in the skin called hair follicle stem cells (red and orange).
Cool Image: Antioxidant for Damaged Mitochondria
In a mouse model of Huntington's disease, a synthetic antioxidant improved mitochondrial function and suppressed symptoms of the disease.
News Releases on Stem Cells