Question:
Which of the following is characterized by non functional pollen grains, while female gametes function normally?
Which of the following is characterized by non functional pollen grains, while female gametes function normally?
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Male sterility is commercially classified into genetic male sterility (GMS), cytoplasmic male sterility (CMS), and cytoplasmic-genetic male sterility (CGMS).
Updated On: Jul 10, 2026
- Self-incompatibility
- Male sterility
- Pure line
- Pedigree
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
For efficient hybrid seed production, self-pollination must be prevented.
This can be achieved using plants that are unable to produce viable or functional pollen, while keeping their female organs fully functional.
Step 2: Detailed Explanation:
- Male Sterility: A condition in plants characterized by non-functional, malformed, or absent pollen grains, while the female gametes develop and function normally.
This biological condition eliminates the need for manual emasculation in cross-pollinated hybrid seed production programs.
- Self-Incompatibility: Both pollen and female gametes are fully functional, but fertilization fails due to genetic recognition and rejection of self-pollen.
- Pure Line: A progeny of a single self-pollinated homozygous plant.
- Pedigree: A record of ancestry and familial relations in selection programs.
Step 3: Final Answer:
The condition defined by non-functional pollen and functional female gametes is male sterility.
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