Using the labor of dozens of undergraduate students, scientists have built a customized yeast chromosome from scratch.
It's a milestone in the rapidly growing field of synthetic biology, where organisms can be tailored for industrial use. In this case, the near-term goal is to understand the genetics of yeast, and eventually the genetics of us.
This was quite an undertaking. Yeast have about 6,000 genes packed in 16 tidy bundles called chromosomes. Each chromosome is an enormous molecule of DNA packed in proteins.
Originally published on Thu March 27, 2014 2:15 pm
Last week we reported on a new campaign from the Center for Biological Diversity that hopes to persuade Americans to cut back on their meat consumption. Their pitch? Eat less meat and you will help save wildlife.
The symptoms of autism may not be obvious until a child is a toddler, but the disorder itself appears to begin well before birth.
Brain tissue taken from children who died and also happened to have autism revealed patches of disorganization in the cortex, a thin sheet of cells that's critical for learning and memory, researchers report in the New England Journal of Medicine. Tissue samples from children without autism didn't have those characteristic patches.
New England is getting a hard glancing blow from a huge winter storm that has generated hurricane-force winds and such adjectives as "mind-blowing" and "monster" from normally mild-mannered meteorologists.
One look at weather satellite images of North America is all it takes to understand: This is a huge, classic nor'easter. WeatherBell meteorologist Ryan Maue says the storm's "integrated kinetic energy" is four times that of superstorm Sandy.
It's now five days into the search for survivors of the massive landslide in Oso in Washington's Snohomish County. National Guard Troops are combing the area with emergency extraction teams. The unofficial death toll so far is now 24, and authorities are promising more clarity tomorrow on the list of missing people. Some 176 persons are unaccounted for but the real number is thought to be lower than that.