NURSING ANM AND GNM

Detailed explanation-1: -Bacteriophage injects DNA into bacterial cell.

Detailed explanation-2: -Retroviruses, such as the human immunodeficiency virus type 1, and orthomyxoviruses, such as influenza A virus, are RNA viruses that also deliver their genomes into the nucleus of the cells they infect.

Detailed explanation-3: -Viruses are smaller and simpler in construction than unicellular microorganisms, and they contain only one type of nucleic acid-either DNA or RNA-never both.

Detailed explanation-4: -A complete virus particle is called a virion. The main function of the virion is to deliver its DNA or RNA genome into the host cell so that the genome can be expressed (transcribed and translated) by the host cell.

Detailed explanation-5: -When a phage attacks a bacterium, it injects its DNA. The bacterium them makes more phages that are released when the bacterium bursts.