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Tag: "row" at biology news

Researchers trace evolution to relatively simple genetic changes

...tween stickleback forms. It's a dramatic change: a row of 35 armor plates turning into a small handful of plates - or even no plates at all." Using genetic crosses between armored and unarmored fish from wild populations, the research team found that one gene is what makes the difference. "Now, for the...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...tween stickleback forms. It's a dramatic change: a row of 35 armor plates turning into a small handful of plates - or even no plates at all." Using genetic crosses between armored and unarmored fish from wild populations, the research team found that one gene is what makes the difference. "Now, for the...

Shift of weather patterns necessitates rethinking of reforestation methods

... had to replant two, three or even four years in a row because of poor seedling survival." Second-year data from an ongoing comparison of planting methods show that survival rates could be significantly increased by using containerized seedlings and planting in the fall instead of the winter or early sp...

New defibrillator signals doctor of patient's irregular heartbeat or device malfunction

...hospitals nationwide. This is the third year in a row that Loyola has achieved the top spot for Heart Care and Heart Surgery in the state. Loyola opened its new 10,000-square-foot Center for Heart and Vascular Medicine on the Loyola University Medical Center campus. Loyola's 3,500-square-foot Sally &a...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...will burn some areas yearly for several years in a row to carefully monitor fire behavior, and to see how many fires a forest can withstand and ultimately, how it compares to its former self. Staffs of the Woods Hole Research Center and its partner research institute in Brazil, the Instituto de Pesquisa...

New U. of Colorado at Boulder flu chip may help combat future epidemics, pandemics

... are "spotted" robotically in an array, where each row of three spots contains a specific sequence of "capture" DNA. Each spot is approximately one-hundredth of an inch in diameter. The microarray is then immersed in a wash of influenza gene fragments obtained from the fluid of an infected individual. ...

Forgotten by evolution?

... of skeleton muscle cells. In both experiments, a row of muscle-specific genes was activated in the cells. This provided evidence for the beginnings of a differentiation process. But this process was only apparently halfway complete. So, for example, after the activation of the wnt-signaling cascade, th...

Fruit fly's beating heart helps identify human heart disease genes

... scientific sessions. This is the second year in a row that a trainee in Rockman's lab has won the Katz prize. Last year, Naga Prasad, Ph.D. received the award. In the past, researchers could not accurately study heart disease in fruit flies because of an inability to accurately image heart function of ...

When good DNA goes bad

..., the sequence CG repeated more than 14 times in a row is prone to forming Z-DNA, while the sequence AT is not as efficient at forming this structure. Analysis of the genome reveals that DNA sequences prone to forming the Z-DNA structure occur in 0.25 percent of the genome, according to Vasquez. She an...

Increase in carbon dioxide emissions accelerating

...wo parts per million in 2005, the fourth year in a row of above-average growth. "To have four years in a row of above-average carbon dioxide growth is unprecedented," Dr Fraser says. Dr Fraser says the 30-y...

Taking 'chips' to the next level of gene hunting

...ogy. So if their experiment lights up a horizontal row of dots, the researchers learn that the data maps to the region of the genome contained in the bottom layer; likewise, if the experiment highlights a vertical row, the data correspond to the top layer. Says Boeke, "It's so easy to differentiate th...

Teenager moves video icons just by imagination

...th across the bottom of the video screen. Row upon row of video aliens march back and forth across the screen, slowly coming down from the top to the bottom of the screen. The objective is to prevent any one of the aliens from landing on the bottom of the screen, which ends the game. The player has an un...

Biologically inspired sensors can augment sonar, vision system in submarines

...d prey and avoid being preyed upon, fish rely on a row of specialized sensory organs along the sides of their bodies, called the lateral line. Now, a research team led by Chang Liu at the University of Illinois at Urbana-Champaign has built an artificial lateral line that can provide the same functions i...

Climate change could trigger 'boom and bust' population cycles leading to extinction

... crashes that occur when several "good years" in a row are followed by a bad year. "It's almost paradoxical, because you'd think a large population would be better off, but it turns out they're more vulnerable to a drop in resources," says Wilmers. Understanding how environmental changes influence flu...

Row over study puts Korea's scientific community under scrutiny again

This week's BMJ investigates a bitter row over a scientific paper that is putting Korea's scientific community under scrutiny once again. The dispute has pitted a young Korean doctor, Jeong Hwan Kim, against Kwang Yul Cha, a fertility specialist and one of the most powerful players in the c...

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