Question
Question: What will be affect on curvature if gelatin block is placed between coleoptile tips and the coleopti...
What will be affect on curvature if gelatin block is placed between coleoptile tips and the coleoptile stump and then exposed to unidirectional light
A
Curvature towards light occurs
B
Curvature away from light occurs
C
No curvature occurs
D
None of the above
Answer
No curvature occurs
Explanation
Solution
Coleoptile tips perceive light and synthesize auxin, which then moves down to the elongating region to induce curvature. Placing a gelatin block between the tip and the stump interrupts the auxin transport. As a result, the differential growth does not take place, and no curvature occurs.