Which of the following cell organelle does not contain DNA
Show Hint
These are also the organelles with Double Membranes.
- Lysosome
- Mitochondria
- Chloroplast
- Nucleus
The Correct Option is A
Solution and Explanation
The question identifies cell organelles based on the presence or absence of their own genetic material (DNA).
Step 2: Detailed Explanation:
• Nucleus (D): It contains the primary genetic material of the cell (genomic DNA) organized into chromosomes.
• Mitochondria (B): These are "semi-autonomous" organelles. They contain their own circular DNA (mtDNA) and ribosomes, allowing them to synthesize some of their own proteins.
• Chloroplast (C): Like mitochondria, chloroplasts in plants have their own circular DNA (cpDNA) and are considered semi-autonomous.
• Lysosome (A): These are membrane-bound sacs containing hydrolytic enzymes used for intracellular digestion. They are produced by the Golgi apparatus and do not contain any DNA.
Final Answer:
Among the options, lysosomes are purely enzymatic organelles without any genetic component.
The correct option is (A).
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• [(B).] Enforced seed dormancy is truly a specific character of the seeds.
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List-I: Seed type & List-II: Examples
(A). Orthodox seed & (I). Coffee
(B). Recalcitrant seed & (II). Chickpea
(C). Impermeable seed coat & (III). Capsicum
(D). Hypogeal germination & (IV). Soybean (wild type)
Choose the correct answer from the options given below:
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