Question:medium

Outer layer of microspore is made up of:

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The exine of pollen grains is made of sporopollenin, one of the most resistant organic substances known in nature. This allows pollen grains to remain preserved for thousands of years as fossils.
Updated On: Aug 9, 2026
  • Cellulose
  • Pectin
  • Sporopollenin
  • Lignin
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The Correct Option is C

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