Question:
Which one is not related to NPC system of classification?
Which one is not related to NPC system of classification?
Show Hint
NPC classifies pollen apertures, not anther tissue.
Updated On: Jul 4, 2026
- Tapetum
- Dizonotreme
- Catalept
- Colporate
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: The NPC system, given by Erdtman, classifies pollen grains on the basis of their apertures: N stands for number of apertures, P stands for position of apertures, and C stands for character (shape) of apertures.
Step 2: Terms like colporate (an aperture with both a colpus and a pore), dizonotreme, and catalept describe aperture number, arrangement or character, so they belong to this system.
Step 3: Tapetum is a nutritive layer of the anther wall, involved in pollen nutrition, and has nothing to do with aperture-based pollen classification.
Step 4: So the term unrelated to the NPC system is tapetum.
Was this answer helpful?
0
0
Top CPET Botany Questions
- The bacterial cell wall contains peptidoglycans, which are polymers of N-Acetyl Glucosamine and __________.
- Hepatitis B Virus contains __________.
- Among the followings, Endospores are more commonly formed in case of __________.
- In the 50S ribosomal subunit, the sedimentation coefficient values of rRNA are 5S and __________.
- Among the followings, Cap cells are more commonly seen in case of __________.
View More Questions
Top CPET Plant Ecology Questions
- Based on nature of substratum, plants are divided into different types. Which one is not one of those ?
- Joseph Barrell is known for his studies on ___.
- Which one is not a theory of community ?
- A transition area between two plant communities, where they meet and integrate, is called ___.
- As per classification by Allee (1949), ___ is not mentioned as one of the biomes.
View More Questions
Top CPET Questions
- Which of the following is a key reason for choosing DRAM over SRAM for main memory?
- Which of the following components in an FPGA is responsible for implementing combinational and sequential logic?
- What is the main purpose of declaring a base class as virtual in multiple inheritance?
- What happens if a class contains at least one pure virtual function?
- What happens if a derived class defines a function with the same name as a base class function, but with a different parameter list?
View More Questions