The genetic material of a prokaryotic cell is known as .........?

Which of the following are characteristics of prokaryotic cells?
$(a)$ Ribosomes are made of $50S$ and $30S$ subunits
$(b)$ They can have plasmids
$(c)$ They contain mesosomes
$(d)$ They have peroxisomes
Choose the correct answer from the options given below:

Which one of the following organisms is not an example of a eukaryotic cell?

Which of the following structures is $NOT$ found in a prokaryotic cell?

What is the structure of a prokaryotic flagellum?

Mitochondria are non-existent in