The given diagram shows a destarched, variegated leaf, partly covered by black paper. The plant is placed in bright light for several hours.
Four discs are then cut from the leaf in the positions shown and are tested for starch. Which discs do/does not contain starch?
A 1, 3 and 4 only
B 1 and 2 only
C 2 only
D 3 and 4 only
Ans 2:
Class : Class 7
the answer should be option d as discs 1 and 2 are not covered and 3 and 4 are covered
Ans 3:
Class : Class 7
But disc one is the white part and chlorophyll is necessary for photosynthesis. The point of this experiment is necessity of chlorophyll. And it says does/do not. Please be more clear about the question