Which of the following is not a feature of the plasmids?

1. Single – stranded 2. Independent replication
3. Circular structure 4. Transferable

Subtopic:  Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
 68%
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Select the wrong statement.

1. Mycoplasma is a wall-less microorganism
2. Bacterial cell wall is made up of peptidoglycan
3. Pili and fimbriae are mainly involved in motility of bacterial cells
4. Cyanobacteria lack flagellated cells
Subtopic:  Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
 77%
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Which of the following components provides sticky character to the bacterial cell?
1. Cell wall
2. Nuclear membrane
3. plasma membrane
4. Glycocalyx

Subtopic:  Details of Prokaryotic Cell Structure |
 89%

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Mitotic spindles are mainly composed of which protein?

1.Actin2.Tubulin
3.Actomyosin4.Myoglobin

Subtopic:  Cytoskeleton | Centrosomes |
 82%
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The structure that helps in cell wall formation, DNA replication and respiration in bacteria is :
1. Mesosome
2. Chromatophores
3. Pilus
4. Nucleoid

Subtopic:  Details of Prokaryotic Cell Structure |
 93%
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Which of the following statements can explain the fact that many scientists do not consider viruses as living organisms?

1. Metabolism and growth are defining properties of living organisms.
2. Anything less than a complete structure of a cell does not ensure independent living.
3. All cells arise from pre-existing cells.
4. All biochemical reactions are catalyzed by enzymes.
Subtopic:  Introduction to Cell |
 79%
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A non-membrane bound organelle found in all cells is:

1. Centriole 2. Lysosome
3. Vacuole 4. Ribosome
Subtopic:  Ribosome and Inclusion Bodies |
 90%
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Spindle fibers are attached to the chromosome in the region of:

1. Centrosome 2. Chromomere
3. Chromonema 4. Kinetochore
Subtopic:  Centrosomes |
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Identify the appendage present on the surface of some bacterial cells that help attach them to rocks in streams and also to the host tissues:

1. Flagella 2. Pili
3. Fimbriae 4. Cilia
Subtopic:  Cilia & Flagella |
 84%
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Most of the functions of a cell membrane can be attributed to its:
1. Phospholipids
2. Cholesterol
3. Proteins
4. Carbohydrates

Subtopic:  Cell Membrane |
 51%
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