Question

what do you understand by the term variegated leaves?

Answer 1

variegated leaves are the leaves which have both green and non green parts.

Answer 2

Answer:

But colored patches of variegated leaf doesn't include chlorophyll and thus don't prepare starch through photosynthesis. So iodine added in this region will change into brown color. Thus this experiment proves chlorophyll is necessary for leaves to prepare starch through photosynthesis.