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Biology · PYQ NEET UG 2016(1)

हिन्दी

Which of the following statements is NOT correct?

  1. A
    Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.
  2. B
    Some reptiles have also been reported as pollinators in some plant species.
  3. C
    Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil.
  4. D
    Insects that consume pollen or nectar without bringing about pollination are called pollen/nectar robbers.
View Answer & Solution

Correct answer · Option A

Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.

Explanation

Stigma is species-specific; generally, pollen grains of the wrong type or different species do not germinate on the stigma, making statement (3) incorrect.
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