What happens to a plant if the shoot tip is cut off and replaced by an agar block containing auxin? it will

boayem

4 months ago

The answer is C. It will continue to grow normally. When a shoot tip is removed, the source of auxin is lost, which normally stops vertical growth. However, because auxin can diffuse through agar, an agar block infused with the hormone acts as a substitute for the biological tip. The auxin from the block diffuses down into the shoot, stimulating the cells below to elongate just as they would if the tip were still present. This allows the plant to continue to grow in height.