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Question
The abscission layer is covered by a leaf scar which is composed of
The abscission layer is covered by a leaf scar which is composed of
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Solution
The correct option is C Suberin
Abscission zone is found at the base of petiole. The young leaves produces hormones that inhibit specialization in abscission zone. The hormonal imbalance during aging forms two different layers. The protective layer on stem side becomes impregnated with suberin. The separation layer on leaf side which weakens the connection between leaf and stem. As abscission zone develops, chlorophyll in leaves breaks down.
Thus, the correct answer is option B.
Abscission zone is found at the base of petiole. The young leaves produces hormones that inhibit specialization in abscission zone. The hormonal imbalance during aging forms two different layers. The protective layer on stem side becomes impregnated with suberin. The separation layer on leaf side which weakens the connection between leaf and stem. As abscission zone develops, chlorophyll in leaves breaks down.
Thus, the correct answer is option B.
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