Featured Article: Why would scientists want to create a hybrid human-cow embryo?
This week, a group of London-based scientists requested official permission to begin a three-year study involving stem cells derived from human-cow hybrids. See more »
genetic science library
Genetics is the study of cellular science. It furthers our understanding of how DNA and the genetic make-up of species and can lead to cures for diseases and shape our future.
How Twins Work
We take it for granted that we're completely different from any other person, yet twins are unique people who are also eerily similar to each other. Learn how twinning happens and what types of twins are out there.
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Should we bank the genes of extraordinary people for cloning?
Imagine strolling down the halls of a vast library, the shelves packed with prime genetic material from society's best scholars and athletes. Is it ever going to happen?
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What can your spit tell you about your DNA?
Doctors always want your blood, but one day, a health care professional may ask you to open up and say, "Ptooey!" Why? Your spit holds a mother lode of biological information.
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What have we learned from the Human Genome Project?
More than 50 years have passed since Watson and Crick untangled the structure of DNA and five years have elapsed since scientists finished sequencing the entire human genome. What have we figured out about our genetic material?
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What is the Human Epigenome Project?
You know how scientists labored to map the human genome? Well, they're back at it, only this time, they're studying what causes those thousands of genes to switch on and off.
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What's the Missyplicity Project?
The Missyplicity Project sprang from one billionaire dog owner's desire to have his canine best friend back again. Did the project work, and how much are cloned animals like the original?
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Why are British scientists creating a human-pig hybrid?
Pig people sound like the stuff of a B-grade horror flick, but they're more real than you think. What do scientists hope to learn from these embryonic chimeras?
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Why are some animals harder to clone than others?
With headlines about cloned meat entering our grocery stores and all that talk about Dolly the sheep, you might be surprised to learn that many animals aren't so easy to clone.
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Why are turkeys genetically modified?
That bowling ball of white meat in your oven is a far cry from its wild ancestors. How did a single breed of top-heavy, dim-witted birds come to dominate the turkey market?
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Why do old couples look alike?
Many old couples tend to look like each other due to shared life experiences, according to a recent study. Learn more about why older couples look alike.
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Why would scientists want to create a hybrid human-cow embryo?
This week, a group of London-based scientists requested official permission to begin a three-year study involving stem cells derived from human-cow hybrids.
See more »
Would having your own clone be like having an identical twin?
The closest we've come to human clones is with Mother Nature's double whammy: identical twins. Would you and your clone be any different from those twins in "The Parent Trap"?
See more »Chromosome
Chromosome, a tiny body-contained within the nucleus of a cell of a living organism.
See more »Cloning
Cloning, any of various techniques used to reproduce genetically identical organisms from an individual organism; the organisms so produced are called clones.
See more »Cross-pollination
Cross-pollination, the transfer of pollen from one plant to another plant. The opposite of cross-pollination is self-pollination, in which a plant pollinates itself.
See more »Genetic Engineering
Genetic Engineering, the process of extracting DNA (deoxyribonucleic acid, which makes up the genes of all living things) from one organism and combining it with the DNA of another organism, thus introducing new hereditary traits into the recipient organism.
See more »Genetics
Genetics, the study of the biological mechanisms by which an organism's traits are passed from generation to generation.
See more »How does your body know the difference between dominant and recessive genes?
Ever since I took biology in high school I have wondered -- why do humans (and plants and animals) have two of every gene, and why is one "dominant" and the other "recessive"? How does my body know which one is dominant? How does it pick between the
See more »Human Genome Project
Human Genome Project (HGP), an international project to analyze the genome, or complete set of genetic material, of the human species.
See more »Hybrid
Hybrid, a plant or animal whose parents belong to two different breeds, varieties, or species.
See more »videos: genetic science
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