Question

Milky latex occurs in

• A. Helianthus
• B. Tagetes
• C. Sonchus
• D. All of the above

Answer 1

The correct option is D All of the above

• Latex is a complex emulsion consisting of proteins, alkaloids, starch, oils, tannins, resins and gums that coagulate on exposure to air. It is found in nature as a milky fluid found in 10% of all flowering plants. It is usually exuded after tissue injury. In most plant latex is white but some have yellow, orange or scarlet latex.
• Latex is produced mostly in the Asteraceae/ sunflower family. Helianthus, commonly known as the sunflower is a genus of plant belonging to Asteraceae. Tagetes is a genus of annual or perennial plants belonging to Asteraceae. Sonchus is the genus of flowering plants within the sunflower family.
  

So, the correct answer is 'All of the above'.