Match the items in Column-$I$ with Column-$II$ and select the correct option:

Column-$I$	Column-$II$
$(A)$ Typical animal cell	$(i)$ Multinucleate
$(B)$ Zygote	$(ii)$ Uninucleate
$(C)$ Human $RBC$	$(iii)$ Binucleate
$(D)$ Plant endosperm	$(iv)$ Enucleated

Match the columns and identify the correct option.

Column $I$	Column $II$
$A$. Thylakoids	$(i)$ Disc-shaped sacs in Golgi apparatus
$B$. Cristae	$(ii)$ Condensed structure of $DNA$
$C$. Cisternae	$(iii)$ Flat membranous sacs in stroma
$D$. Chromatin	$(iv)$ Infoldings in mitochondria

Which group of cell organelles contains $DNA$?

What is the structure labeled as $A$ in the given figure made of?

Consider the following statements and choose the incorrect option:
$a$. Large and more numerous nucleoli are present in cells actively carrying out protein synthesis.
$b$. Nuclear pores allow bidirectional movement of molecules.
$c$. Cytoskeleton is a glycolipid structure for mechanical support,motility and maintenance of the shape of the cell.
$d$. Steroidal hormones are synthesized by Golgi complex.

In the given hierarchy of biological organization: $(P) \rightarrow \text{Subatomic particles} \rightarrow \text{Atoms} \rightarrow \text{Molecules} \rightarrow (Q) \rightarrow \text{Cells} \rightarrow \text{Tissues}$,what do $(P)$ and $(Q)$ represent respectively?