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ICAR JRF Post Harvest Management 29 Jun 2024Shift 1
MCQ (Single Correct)
+4
−1
Which form of the chimera is considered most stable?
EXPLANATION
Sexual & Asexual Propagation, Chimeras & Root
- Types of Plant Chimeras:
- Periclinal Chimera: Genetically altered mutant cell layer completely envelopes the central inner core across the entire shoot apical meristem (covering L-I, L-II, or L-III layers). It is the most stable chimera and can be maintained indefinitely through vegetative cloning (cuttings, grafting).
- Mericlinal Chimera: The mutation occupies only a portion of one outer layer; unstable and quickly segregates into periclinal or wild-type shoots.
- Sectorial Chimera: The mutation occupies a wedge-shaped cross-section involving multiple layers; highly unstable and lost during growth.
- Correct Option: Option 2 (Periclinal).
Explanation not matching this question?
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