What are the different types of $RNA$ found in the cell?

What is the unit consisting of a base,sugar,and phosphate in nucleic acids called?

$DNA$ fingerprinting is a technique used to identify individuals by their genetic makeup. It relies on the fact that the sequence of nucleotides in $DNA$ is unique to every individual,except for identical twins. The process involves isolating $DNA$,fragmenting it using restriction enzymes,separating the fragments via gel electrophoresis,and then using probes to visualize specific patterns ($DNA$ profiles). Uses: $1$. Forensic investigations for solving crimes. $2$. Determining paternity or maternity. $3$. Identifying genetic disorders and hereditary diseases.

The correct statement with regard to the secondary structure of $DNA$/$RNA$ is:

Among the following compounds,which one is found in $RNA$?

Which of the following is not present in $RNA$?