What do the blue arrows indicate?

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Class 12 Biology Practice Test: Reproduction in Flowering Plants - Properties of Pollen Grains — practice the complete quiz, review flashcards, or try a random question.


What do the blue arrows indicate?<br /><img src='https://www.fatskills.com/class12science/biology-questions-answers-flowering-plants-reproduction-properties-pollen-grains-q1.png' alt='Germ pore is a pore that is present on the outer wall of the pollen grain in given diagram' width='275' height='228' />






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