Cell is the fundamental structural and functional unit of all living organisms. This statement can be best justified by the fact that:
1. The cells contain nucleic acids that contain genetic information
2. A large number of organelles present in the cell perform various functions
3. Anything less than a complete structure of a cell does not ensure independent living
4. All multi-cellular organisms begin their life as a single celled zygote
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Who concluded, based on his studies on plant tissues, that the presence of cell wall is a unique character of plant cells?
1. | Matthias Shcleiden | 2. | Theodore Schwann |
3. | J. B. S. Haldane | 4. | Rudolph Virchow |
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The famous aphorism ‘omniscellula-e-cellula’ was added to the cell theory in 1855 by
1. | Matthias Shcleiden | 2. | Theodore Schwann |
3. | J. B. S. Haldane | 4. | Rudolph Virchow |
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1. | Only I and II | 2. | Only I |
3. | Only II and III | 4. | Only III |
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1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | I, II and III |
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1. | is a non- membrane bound organelle found in all cells which helps in cell division |
2. | is a non- membrane bound organelle found in plant cells which helps in cell division |
3. | is a non- membrane bound organelle found in animal cells which helps in DNA replication |
4. | is a non- membrane bound organelle found in animal cells which helps in cell division |
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1. | Bacillus | Rod shaped |
2. | Coccus | Spherical |
3. | Vibrio | Icosahedral |
4. | Spirillum | Spiral |
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Most bacteria contain plasmids that often encode for traits that are:
1. advantageous but not essential to their bacterial host
2. advantageous and essential to their bacterial host
3. not advantageous but essential to their bacterial host
4. neither advantageous nor essential to their bacterial host
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