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Tag: "explanation" at biology news

Corals -- More complex than you?

...n thousands of different cell types. A possible explanation for this, Prof. Miller believes, is that coral genes may interact with each other in far less complex ways. Humans, on the other hand, are the product of a continuous and complicated dialogue between thousands of genes. Who has the best formula f...

Male circumcision overstated as prevention tool against AIDS

... Second, to date, there has not been an adequate explanation as to why Africa as a continent is experiencing an AIDS epidemic far in excess of any other region of the world with some African countries’ prevalence rates exceeding 25% of the adult population and tens of millions dying from the disease on the con...

Physicist cracks women's random but always lucky choice of X chromosome

...etely random distribution of X chromosomes but the explanation may have much wider implications as at least 10% o...erspective of a physicist Dr Nicodemi has found an explanation for the random selection based on thermodynamics. Research has already shown that at the key moment ...

Migration alert -- How tumor cells home in on the lymphatic system

...tdoctoral researcher Jacqueline Shields provide an explanation along with data to support it. Tumors produce excess fluid that continually percolates from the tumor towards nearby lymphatic vessels. The EPFL research shows how tumor cells use a clever chemical strategy to exploit this slow, one-way flow in or...

Pesticides choke pathway for nature to produce nitrogen for crops

...ll symbiotic nitrogen fixation. The most common explanation for the observations is an overuse of agrichemical... soil is turned. "Our research provides another explanation for declining crop yields," Fox said. "We showed that by applying pesticides that interfere with sym...

Cells re-energize to come back from the brink of death

... use to survive and thrive. The finding offers an explanation of how abnormal cells that have cheated death once by disabling the main suicide pathway called apoptosis can also foil a backup self-destruct program, which allows them to survive and become cancerous. The St. Jude study also suggests that a dru...

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