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Phalanndwachris8740
07.01.2020 •
Biology
"the resistance gene was present in the aphid population as a result of
(1)the need of the potatoes to become resistant to the insecticide
(2)changes in the aphids’ local habitat by the insecticide
(3)a recombination of the proteins in the potato cells
(4)a random change in the aphids’ dna sequence"
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Ответ:
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Ответ:
chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for example. Gene regulation also allows cells to react quickly to changes in their environments.organism develops and functions.
Explanation: