The research by Natalie De Witt and Michael Sussman showed that proton pump AHA3 is localized in the membrane of companion cells of the source tissue. The function of this pump is to move _____
A) protons from inside of companion cell to outside
B) protons from outside of companion cell to inside
C) protons inside of companion cell to source cell
D) protons and sucrose from inside of companion cell to outside
E) protons and sucrose from outside of companion cell to inside
Answer: A
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____________________ are mutations involving the increase of the number of repeat sequences in
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