Because of their small size, primer-dimers usually melt at lower temperatures than the. desired product. Additionally, nonspeciï¬c ampliï¬cation may. result in PCR products that melt at temperatures above or. below that of the desired product.
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Hunting by men provides twenty percent of the nourishment, but women regularly produce eighty percent of the tribe's total food consumed. These conclusions can then be transferred backward to the hunting/gathering societies of prehistoric cultures. Women in these ancient times must not have relied on the men for food. Through teeth analysis it has been discovered that grain, nuts and fruits were the major foods not meat. It was long thought that the Ice Man found in the Italian Alps in 1991 was a hunter who had died on a quest for big game.