FOOD PROCESSING AND PRESERVATION
HIGH PRESSURE PROCESSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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was created through selective breeding of the teosinte plant.
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was created by natural selection of the teosinte plant.
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has not changed in thousands of years.
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none of these
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Detailed explanation-1: -By selectively breeding each generation, ancient farmers drastically changed teosinte’s appearance, yield, grain quality and survivability-culminating in today’s “corn.” In fact, teosinte is so unlike modern corn, 19th century botanists did not even consider the two to be related.
Detailed explanation-2: -Humans slowly created corn from teosinte. Thousands of years ago, people began to grow food instead of hunting and gathering. They selected seeds from their best plants at harvest time to plant the next year. Large kernels without hard shells were easier to eat, so every year farmers saved the largest, softest seeds.
Detailed explanation-3: -The Difference Between Teosinte and Maize is About 5 Genes By applying basic laws of genetic inheritance, Beadle calculated that only about 5 genes were responsible for the most-notable differences between teosinte and a primitive strain of maize.
Detailed explanation-4: -The hard outer casing of teosinte makes the dry grain inedible. It was a genetic mutation that caused this hard outer coating to disappear. Ancient plant breeders took advantage of this trait by saving and planting these kernels, essentially making corn what it is today.