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

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

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

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

Consider the given two statements:

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

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

Consider the given two statements:

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

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

The largest structures passed through the nuclear pores are: