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5. You suspect that auxin signaling leads to inhibition of growth in plant leaves. How would...

5. You suspect that auxin signaling leads to inhibition of growth in plant leaves. How would you test this hypothesis?

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Answer #1

Auxin is a plant growth hormone produced by the plants. They play a crucial role in carrying
out many plant processes. They have a wide variety of functions.
They promote cell growth, phototropism and also aid in suppressing lateral growth.
Auxin is considered as an overall growth promoter.

It is given that auxin signaling leads to inhibition of growth in plant leaves.
To check this, we can perform multiple experiments.
1. Apply auxin and see its effect on the growth of leaves. If auxin represses leaf growth
then application of auxin leads to reduced leaf growth.
2. overexpress a gene involved in auxin biosynthesis. These mutant plants should show smaller
leaves if auxin represses the leaf growth.
3. Overexpress an Aux/IAA protein. If auxin represses leaf growth these mutants should show
enhanced leaf growth.

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