Multiple choice

Under which of the following conditions would pollen from an S2S5 plant successfully pollinate an S1S5 flower?

  1. If you used pollen from a carpelate flower, to fertilize a staminate flower, it would be successful.

  2. If the plants used gametophytic self-incompatibility, half of the pollen would be successful.

  3. If the plants used sporophytic self-incompatibility, half of the pollen would be successful.

  4. Pollen from an S2S5 plant can never pollinate an S1S5 flower.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option 2 is correct because in gametophytic self-incompatibility, the S2 pollen would successfully pollinate the S1S5 flower, but the S5 pollen would not.

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