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Nataley Cecile Mokate

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Hermann Joseph Muller

Died 5 Apr 1967 at age 76 (born 21 Dec 1890). American geneticist who demonstrated that mutations and hereditary changes could be caused by X-rays striking the genes and chromosomes of living cells (first produced in the fruit fly Drosophila in 1927). His first task - to create procedures to exactly measure the mutation frequency - took several years. Then he investigated the effect of different agents on the frequency of mutations. He found that experiments could be arranged, for instance, so that nearly 100 per cent of the offspring of irradiated flies showed mutations. Thus a possibility had been created for the first time of influencing the hereditary mass itself artificially. Muller was awarded the Nobel Prize for Physiology or Medicine in 1946.«

While the bar patron savored a...

While the bar patron savored a double martini, an attractive women sat down next to him. The bartender served her a glass of orange juice, and the man turned to her and said, "This is a special day. I'm celebrating."

"I'm celebrating, too," she replied, clinking glasses with him.

"What are you celebrating?" he asked.

"For years I've been trying to have a child," she answered, "Today my gynecologist told me I'm pregnant!"

"Congratulations," the man said, lifting his glass. "As it happens, I'm a chicken farmer, and for years all my hens were infertile. But today they're finally fertile."

"How did it happen?"

"I switched cocks."

"What a coincidence," she said, smiling.

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