Identify the incorrect statement regarding endospores in bacteria:
1. An endospore is a dormant, tough, and non-reproductive structure produced by some bacteria and archaea.
2. Endospore formation is usually triggered by a lack of nutrients, and usually occurs in gram-positive bacteria.
3. The endospore consists of the bacterium's DNA, ribosomes and large amounts of dipicolinic acid.
4. When favorable conditions return, a large number of cells are produced as a result of endospore germination.

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:
I. Carboxysomes are thought to have evolved as a consequence of the increase in oxygen concentration in the ancient atmosphere
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