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Match List I with List II. List I: A. Axoneme; B. Cartwheel pattern; C. Crista; D. Satellite. List II: I. Centriole; II. Cilia and flagella; III. Chromosome; IV. Mitochondria. Choose the correct answer from the options given below:
Axoneme = Core of cilia & flagella (9+2) (II); Cartwheel = Centriole (9+0) (I); Cristae = Infoldings of mitochondria (IV); Satellite = Chromosome secondary constriction (III)! Match: A-II, B-I, C-IV, D-III!
The core of cilium or flagellum is called axoneme, possessing nine doublets of radially arranged peripheral microtubules and a pair of centrally located microtubules ( array) (A -> II). The central hub and radial spokes of a centriole give it a cartwheel appearance (B -> I).
The inner membrane of a mitochondrion forms a number of infoldings called cristae towards the matrix to increase surface area (C -> IV). A few chromosomes have non-staining secondary constrictions at a constant location, giving the appearance of a small fragment called satellite (SAT chromosome) (D -> III).
A-II, B-I, C-IV, D-III matches Option (2).
Diagnose every choice: Know exactly why the right option works and why distractors fail.
Mismatches Cartwheel with Mitochondria.
Accurately pairs all four micro-anatomical structures with their respective cell components.
Mismatches Axoneme with Mitochondria.
Mismatches Axoneme with Mitochondria and Cartwheel with Cilia.
Swapping axoneme (9+2 in cilia/flagella) with cartwheel (9+0 in centrioles).
"The core of cilium/flagellum called axoneme possesses 9+2 array... The centrioles have an organisation like the cartwheel... The inner mitochondrial membrane forms infoldings called cristae... Sometimes chromosomes have non-staining secondary constrictions forming a satellite."
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