complete color blindness occurrence on pinegelap atoll of micronesia in the southern pacific is 3000 time more frequent than elsewhere in the world .this has been shown to be caused by?
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Answer:
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Explanation:
PINGELAP ATOLL, A Micronesian island in the South Pacific, sometimes goes by its other name, the Island of the Colorblind. That's the moniker Oliver Sacks assigned the island in his 1996 book that explored the human brain. Pingelap piqued the interest of Sacks and many other scientists because of its strange genetic circumstance. According to legend, a devastating typhoon in 1775 caused a population bottleneck. One of the survivors, the ruler, carried a rare gene for an extreme type of color blindness. Eventually, he passed the gene to the island's later generations.
Today roughly 10 percent of the island's people are still believed to have the gene for the condition, known as complete achromatopsia, a rate significantly higher than the one-in-30,000 occurrence elsewhere in the world. But 10 percent is also high enough that the concept of color—and who can see it—has acquired new meaning among people in Pingelap.