How the RNA of HIV is copied within the host cells ?

The number of atoms (n) contained within a cubic cell is :

Fill up the blank. Protein released by the host cells in response to viral infection when they help to combat healthy cells against viral multiplication is called________

Viruses are non-cellular organisms but relicate themselves one they infect the host cell. To which of the following kingdom do viruses belong to ?

Read the following statements and select the correct ones. (i) Same kind of sticky ends are produced when a DNA has been cut by different restriction enzymes. (ii) Exonucleases make cuts at specific positions within the DNA. (iii) Hind ll was the first restriction endonuclease to be isolated. (iv) A bacteriophage has the ability to replicate within bacterial cells by integrating its DNA with bacterial DNA. (v) Presence of more than one recognition sites for a enzyme within the vector facilitates the gene cloning.

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

Which type of membrane is most abundant within a cell?