Mcclintock's work with transposons calls into question the model of inheritance patterns we have learned in the past that is the basis of mendelian genetics. which model would be most weakened by mcclintock's discovery?

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.