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This is true
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Adjustment knobs are used to focus light in a light microscope
When a signaling molecule binds to the GPCR, the G protein alpha subunit exchanges GDP for GTP. The alpha subunit dissociates from the beta and gamma subunits and interacts with other molecules, ultimately triggering a cellular response. ... GTP is hydrolyzed to GDP, and the signaling molecule comes off of the receptor.
Answer:
Size
Explanation:
All DNA is the same charge, It is ONLY size.