The genophore,bacterial genome,or nucleoid is made up of ...........

Which of the following statements about a bacterial cell is/are correct?
$(i)$ Mesosome is formed by the extensions of plasma membrane into the cell.
$(ii)$ The pili are elongated tubular structures made up of a protein.
$(iii)$ Flagellum is composed of filament,hook,and basal body.
$(iv)$ Ribosomes are about $30 \; nm$ by $50 \; nm$ in size.

$A$: Some bacteria possess unique phenotypic characters.
$R$: Many bacterial cells contain plasmid $DNA$ in addition to genomic $DNA$.

In the cytoplasm,high numbers of inclusion bodies are called........

Assertion $A$: Prokaryotic organisms do not undergo development and differentiation into multicellular forms.
Reason $R$: Prokaryotic organisms are unicellular.
Which option is correct for Assertion $A$ and Reason $R$?

The number of chromosomes in bacterial cells is $1-3$ and they are ..........