alleryA variegated leaf shows starch only in the green parts because
ACarbon dioxide enters only through the green parts
BWhite parts have more stomata than green parts
CRoots send water only to the green leaf parts
DChlorophyll is present only in the green parts
Answer & Solution
Correct answer: D. Chlorophyll is present only in the green parts
1. White areas of a variegated leaf lack chlorophyll.
2. Without chlorophyll photosynthesis cannot occur.
3. So no starch is formed in the white parts.
4. Hence only green parts react with iodine.
_Source: Selina Concise Biology Class 10, Ch on Photosynthesis (Mistral OCR'd PDF), section on variegated leaf experiment_
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