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Posts tagged Radioactive

February 9, 2018

 

From the source (click through to read more): "In this photograph, a labeled DNA segment (a known oncogene) has been put into a mouse oocyte, a cell that develops into a mature egg cell. The labeled DNA has paired with (or hybridized to) multiple copies of RNA in the mouse oocyte. The presence of this RNA (shown here as black dots inside the nucleus of the immature cell) shows that the normal cellular counterpart of the oncogene is active, suggesting that it is critical for normal germ cell development. Expression of genes is manifested by the production of RNA transcripts within cells."

DNA Photographed

In 1962, a biologist photographed DNA copying itself.

December 27, 2011

 

The periodic table!

Please Welcome Two New Metals: Ununquadium And Ununhexium

Have you heard about the newest metals? They have been given temporary names, Ununquadium and Ununhexium.

July 31, 2007

 

The Sky Is Falling?

The dust that makes up fallout is so fine and high up in the atmostphere that it doesn't all fall hours, days, or even weeks after a nuclear blast.

September 27, 2003

 

Why Nuclear Waste Is Like a Birthday Party

Both kids and radioactive material need supervision. Like a child, an energetic radioactive molecule will become less energetic as it ages. Certain materials, like those used in radioactive medicines, have only low-level radioactivity and will decay in only a few days or months.

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