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Tag archives for genetics
“The seed comes from the tree, the tree comes from the seed. It’s like the chicken and the egg. If people want to understand it, they will break the seed apart — they will actually kill it — to see the cells, the chromosomes and the genetics. There is another way to look at this. I plant a seed and a miracle happens — something new is born out of this carbohydrate and protein, a new life is born. This is a miracle, you see? The miracle of life.”
Brown rats are found throughout the world, on its continents and islands, affecting human health and biodiversity, but where did they originally come from? Researchers this month sought to answer that question when they released a global phylogeography of brown rats from cities and islands around the world.
Not pictured: the dozens of hands cutting, sorting and hauling rice. The sweat-soaked saris and brows. The awe of witnessing the preservation of biodiversity.
Norfolk Island is an external territory of Australia, currently governed by its own general assembly. Norfolk Island is the last island around New Zealand from which we need a genetic sample of the invasive rats to complete our phylogeographic map of invasive rats around New Zealand and neighbouring islands.
Barbecues and clambakes. Ice cream and berry pies. Summer is the season of food, food and more food. Is there a way to binge and still stay healthy? For answers, look far underground, say scientists, to the denizens of darkness: blind cavefish. Biologists studied blind cavefish, Astyanax mexicanus, living in freshwater pools in deep caves…
A female fly’s previous sexcapades can have a profound effect on how her future children look, redefining the way scientists think about inheritance in insects.
While millions of people spent last weekend dumping buckets of ice water on their heads and documenting it on Facebook to raise money and awareness for ALS, a few us genetics geeks gathered and talked about haplogroups* A, L and S, among others. *Never heard of a haplogroup? Don’t worry, it’s not because you have…
Nature isn’t perfect: Sometimes things go awry, which can lead to defects such as two heads, three eyes, and other odd mutations.
You could call it a lucky catch: A fisher recently captured an extremely rare “calico” lobster in Maine.
DNA analysis of living inhabitants of Puerto Rico sheds light on the island’s colonial history.
As West Africa struggles with the largest known outbreak of Ebola, Dr. Peter Piot shares how he helped discover and describe the virus’ first known outbreak in 1976 Zaire. Also, geneticist Gil McVean studies the rates of genetic mutation in chimpanzee DNA compared to that of humans to try to determine the date of our last common ancestor.
By Neal Lineback and Mandy Lineback Gritzner, Geography in the NewsTM Svalbard’s “Doomsday Seed Vault” The Svalbard Global Seed Vault, nicknamed the “Doomsday Seed Vault” by some, has opened its doors and is accepting seeds. The seed vault was created to preserve samples of seeds from around the world to protect the earth’s crop diversity.…
By Matthew Frank One day last summer, Michael LeMoine, a Ph.D. candidate in fisheries biology at the University of Montana, carried a nondescript cardboard box into the Missoula FedEx office. Inside it was a jar of ethanol containing a single specimen of a new species of a type of fish called a sculpin. The…
The alligator snapping turtle, the biggest freshwater turtle in North America, is actually three species, a new study says.
Sixty-one years ago tomorrow, James Watson and Francis Crick published a landmark paper on the structure of DNA. Now, April 25 is recognized as DNA Day, a day for celebrating all that we know about genetics, including what DNA tells us about our ancient past. Today, Genographic Project scientists are collaborating with populations around the…