- 1(current)
Q. No.A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is
| 1. | Absence of mitochondria | 2. | Presence of cell wall |
| 3. | Presence of haemoglobin | 4. | Absence of nucleus |
Subtopic: Nucleus |
93%
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Consider the two statements:
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
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
Subtopic: Nucleus |
76%
From NCERT
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Identify the incorrect statement:
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.
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 |
Subtopic: Nucleus |
57%
From NCERT
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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- 1(current)
Q. No.
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