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:

Consider the given two statements:

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

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: