A. Cortex and spore coat formation
B. Maturation and release of endospore
C. DNA replication and axial filament formation
D. Engulfment of forespore
E. Asymmetric septum formation
Choose the correct answer from the options given below :
Endospore Formation Steps Explained
The formation of bacterial endospores (sporulation) is a complex process involving several distinct stages. Arranging these stages correctly is crucial for understanding bacterial survival mechanisms.
Correct Sequence of Endospore Formation
The correct order of the steps for endospore formation is: C, E, D, A, B.
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Step C: DNA replication and axial filament formation
The process begins with the replication of the bacterial DNA. The replicated chromosomes migrate to opposite poles of the cell, forming axial filaments.
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Step E: Asymmetric septum formation
An asymmetric septum (a dividing wall) forms within the cell, separating the replicated DNA and a small amount of cytoplasm to form the pre-spore (forespore).
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Step D: Engulfment of forespore
The larger mother cell membrane then engulfs the forespore, enclosing it within the cell.
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Step A: Cortex and spore coat formation
Peptidoglycan layers form between the two membranes, creating the cortex. Protective layers known as the spore coat develop around the cortex.
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Step B: Maturation and release of endospore
The endospore fully matures, becoming resistant to environmental stress. Finally, the mother cell lyses (breaks down), releasing the free endospore.
Final Answer Derivation
By following the biological sequence of events, the correct order is determined to be C → E → D → A → B, which corresponds to Option D.
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Important Questions from Mixed Topic (CUET PG)
- Who was the founder of Bolshevik Communist party?
- What is the key guide to statecraft in the realist tradition?
- Chronologically arrange the events in the Cold War period.
A. Berlin Wall is constructed
B. Communist China joins the UN
C. Soviet invasion of Czechoslovakia
D. Berlin Blockade
Choose the correct answer from the options given below: Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?
