Consider the given two statements:

Statement-I: Chloroplasts are considered endosymbiotic Cyanobacteria.
Statement-II: Cyanobacteria consist of free-living photosynthetic bacteria.

1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect

Subtopic:  Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
 56%

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A genophore is the DNA of a prokaryote. Though it is commonly referred to as a prokaryotic chromosome, the term “chromosome” is misleading, because:
1. the genophore lacks chromatin
2. the genophore is circular rather than linear
3. the genophore replicates without telomeres
4. the genophore is not enclosed in a nuclear membrane

Subtopic:  Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |

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Consider the given two statements:

Statements I Carboxysomes are thought to have evolved as a consequence of the increase in oxygen concentration in the ancient atmosphere
Statements II Oxygen is a competing substrate to carbon dioxide in the RuBisCO reaction
1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect
Subtopic:  Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |

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Unlike eukaryotes, bacterial membranes (with some exceptions) generally do not contain:
1. Phospholipids
2. Sterols
3. Hopanoids
4. Proteins

Subtopic:  Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |

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A true fungal cell wall does not contain:
1. Chitin
2. Glucans
3. Proteins
4. Cellulose

Subtopic:  Cell Wall |
 57%

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Consider the given two statements:
I. Gas vacuoles, found in cyanobacteria, are membrane-bound, spindle-shaped vesicles that provides buoyancy to these cells.
II. Positive buoyancy is needed to keep the cells in the upper reaches of the water column, so that they can continue to perform photosynthesis.

1. Both I and II are correct and II explains I
2. Both I and are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are incorrect

Subtopic:  Vacuole |

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If a species of bacteria has multiple strains but only some are pathogenic, it is likely that unlike the non-pathogenic strains, the pathogenic strains will have:
1. Plasmids
2. Lipopolysaccharide
3. Pili
4. Flagellum

Subtopic:  Bacterial Staining & Shape |

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The type of chromosomes not seen in humans are:
1. Metacentric
2. Sub-metacentric
3. Acrocentric
4. Telocentric

Subtopic:  Nucleus: Chromosomes |
 73%

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Cytoskeleton elements involved in intracellular transport, the formation of the axoneme of cilia and flagella and the mitotic spindle, are:
1. Microfilaments
2. Intermediate filaments
3. Microtubules
4. FTS-Z

Subtopic:  Cytoskeleton |
 62%

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The largest structures passed through the nuclear pores are:

1. rDNA 2. Lamin proteins
3. mRNA 4. Ribosome subunits
Subtopic:  Nucleus | Ribosome and Inclusion Bodies |

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