NEET Solved Paper 2016 Question 83
Question: Which of the following statements is not correct?
Options:
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.
B) Insects that consume pollen or nectar without bringing about pollination are called pollen / nerctar robbers.
C) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil.
D) Some reptiles have also been reported as pollinators in some plant species.
Show Answer
Answer:
Correct Answer: A
Solution:
- This statement is not correct. Typically, only pollen grains of the same species (or closely related species) can germinate on the stigma of a flower and grow pollen tubes into the style. The stigma and style have mechanisms to recognize and often reject pollen from different species to prevent cross-species fertilization.
BETA
