Multiple choice

Formation of red tomatoes from green tomatoes takes place by:

  1. breakdown of chloroplasts and appearance of chromoplasts

  2. conversion of chloroplasts into appearance of chromoplasts

  3. masking of green chloroplast by anthocyanin pigments

  4. all of the above

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A Correct answer
Explanation

During tomato ripening, chloroplasts (which contain green chlorophyll) break down and disappear. Simultaneously, chromoplasts (plastids containing red pigments like lycopene) develop and become visible. This transformation from chloroplasts to chromoplasts causes the color change from green to red.