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What is guanine?

After my last post, many people wanted to know “What the heck is guanine?” Very simply, guanine is one of the four nitrogen-containing bases found in DNA. You’ve probably seen strings of letters representing DNA structure that look something like this: ATGGATGTCGACGGT and so on. The four letters represent the four bases: adenine, cytosine, guanine, […] Read more

A fight with the varroa mite in New Zealand

Varroa destructor hit the North Island first. It established around Auckland and spread gradually south. At first, beekeepers negotiated quarantine lines. Some apiaries were split down the middle, and boundaries had to be renegotiated every time the infestation spread. And in the meantime, an infested feral colony rode a hollow log into Wellington and Frank’s […] Read more