BlogArena

General blog about anything and everything of everyday's life.

16. Jun 2019

August 23, 2014
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Fertility: Sacrificing eggs for the greater good

A woman’s supply of eggs is a precious commodity because only a few hundred mature eggs can be produced throughout her lifetime and each must be as free as possible from genetic damage. Part of egg production involves a winnowing … Continue reading

March 18, 2013
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Selfish Gene may Undermine Genome Police

Biologists have been observing the “selfish” genetic entity segregation distorter (SD) in fruit flies for decades. Its story is a thriller among molecules, in which the SD gene destroys maturing sperm that have a rival chromosome. A new study reveals … Continue reading

February 3, 2013
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Aging Cells Lose Their Grip on DNA Rogues

Transposable elements are mobile strands of DNA that insert themselves into chromosomes with mostly harmful consequences. Cells try to keep them locked down, but in a new study, Brown University researchers report that aging cells lose their ability to maintain … Continue reading

January 17, 2013
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Better Way to Understand Plasmid Cloning from AddGene

Medical research has been studying molecular cloning for centuries. While many remember the Scottish lambs as the first successful cloning, there have been countless medical advances since then. Many of them are not as evident or dramatic as Molly the … Continue reading

December 7, 2012
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Monkey Business: What Howler Monkeys Can Tell Us about the Role of Interbreeding in Human Evolution

ANN ARBOR — Did different species of early humans interbreed and produce offspring of mixed ancestry? Recent genetic studies suggest that Neanderthals may have bred with anatomically modern humans tens of thousands of years ago in the Middle East, contributing … Continue reading

June 21, 2012
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UCLA Scientists Discover How Key Enzyme Involved in Aging, Cancer Assembles

UCLA biochemists have mapped the structure of a key protein–RNA complex that is required for the assembly of telomerase, an enzyme important in both cancer and aging. The researchers found that a region at the end of the p65 protein … Continue reading

June 17, 2012
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Offspring of Older Fathers May Live Longer

If your father and grandfather waited until they were older before having children, you might experience life-extending benefits. Biologists assume that a slow pace of aging requires that the body invest more resources in repairing cells and tissues. A new … Continue reading

January 14, 2012
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Timely Ends: Telomere Length in Early Life Predicts Lifespan

New research by a team from the Universities of Glasgow and Exeter shows that a good indicator of how long individuals will live can be obtained from early in life using the length of specialised pieces of DNA called telomeres. … Continue reading