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Q. No.Reserve material in prokaryotic cells:
| 1. | are not stored at all. |
| 2. | are stored in the cytoplasm in the form of inclusion bodies not bound by any membrane system. |
| 3. | are stored in the cytoplasm in the form of inclusion bodies bound by a single membrane system. |
| 4. | are stored in gas vacuoles found in blue green and purple and green photosynthetic bacteria. |
Subtopic: Details of Prokaryotic Cell Structure | Ribosome and Inclusion Bodies |
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What is a polysome?
| 1. | Several messenger RNA molecules attached to the larger subunit of prokaryotic ribosome. |
| 2. | Several ribosomes attached to a single messenger RNA molecule. |
| 3. | Three major types of cellular RNAs, namely mRNA, rRNA, and tRNA, all attached to a single messenger RNA molecule. |
| 4. | Many ribosomes attached to the surface of endoplasmic reticulum. |
Subtopic: Ribosome and Inclusion Bodies |
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In prokaryotes,
| 1. | Ribosomes are made of two subunits, 50S and 30S, which, when present together, form 70S ribosomes. |
| 2. | Ribosomes are made of two subunits, 50S and 30S, which, when present together, form 80S ribosomes. |
| 3. | Ribosomes are made of two subunits, 60S and 40S, which, when present together, form 70S ribosomes. |
| 4. | Ribosomes are made of two subunits, 50S and 30S, which, when present together, form 80S ribosomes. |
Subtopic: Ribosome and Inclusion Bodies |
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Consider the given two statements:
Options:
| Assertion (A): | The Svedberg unit is a direct measure of the mass of a particle such as a ribosome. |
| Reason (R): | The Svedberg unit depends on both the size and density of the particle, and also its shape, which affect its sedimentation rate during centrifugation. |
| 1. | Both (A) and (R) are True, and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True, but (R) is not the correct explanation of (A) |
| 3. | (A) is True, but (R) is False |
| 4. | (A) is False, but (R) is True |
Subtopic: Ribosome and Inclusion Bodies |
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