1. | rRNA and proteins | 2. | rRNA and carbohydrates |
3. | rRNa and mRNA | 4. | mRNa, tRNA and proteins |
I: | shows the diagrammatic representation of the ultra-structure of centriole |
II: | shows the 9 + 2 arrangement of the axonemal microtubules of cilia/flagella |
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1. | do not possess flagella |
2. | possess flagella that are structurally similar to that of the eukaryotic flagella |
3. | possess flagella that are structurally different from that of the eukaryotic flagella |
4. | possess flagella made of tubulin protein and microtubules |
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Statement I: | Both the cilium and the flagellum emerge from centriole-like structure called the basal body. |
Statement II: | Basal body, centrioles, cilia and flagella have identical arrangement of microtubules in their ultrastructure. |
1. | Statement I is correct and Statement II is incorrect |
2. | Both Statement I and Statement II are correct but Statement II does not explain Statement I |
3. | Both Statement I and Statement II are correct and Statement II correctly explains Statement I |
4. | Only Statement II is correct |
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1. | it usually contains two cylindrical structures called centrioles |
2. | both centrioles in centrosome are parallel to each other |
3. | in centrioles, the peripheral fibril is a triplet |
4. | the central part of the proximal region of the centriole is a proteinaceous hub |
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1. | Robert Brown | 2. | Robert Hooke |
3. | Flemming | 4. | Rudolph Virchow |
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I: | The content of nucleolus is continuous with the rest of the nucleoplasm. |
II: | Nucleolus is the site for active ribosomal RNA synthesis. |
1. | I is correct and II is incorrect |
2. | Both I and II are correct but II does not explain I |
3. | Both I and II are correct and II correctly explains I |
4. | Only II is correct |
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I: | Nuclear envelope consists of two parallel membranes with a perinuclear space between them. |
II: | Nuclear pore is formed by the fusion of two nuclear membranes at points where they interrupt the nuclear envelope. |
III: | Large and more numerous nucleoli are present in the cells actively carrying out protein synthesis. |
1. Only I | 2. Only II |
3. Only III | 4. None |
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1. metacentric | 2. sub-metacentric |
3. acrocentric | 4. telocentric |
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1. DNA | 2. Basic histones |
3. Non-histone proteins | 4. Polysachharides |
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