Image by PublicDomainPictures from Pixabay   Article Writer-   Minakshi  Kumari, MSc. Biotechnology, RCA, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajsthan(India) Nucleus, genetic material containing organelle in eukaryotic cells, has been probably evolved from the giant viruses, said Masaharu Takemura, Virologist at Tokyo University. Takemura hypothesized that the giant viruses infected early eukaryotic cells having unbound DNA. These viruses used the cytoplasmic membrane of the cell, drawing it around tight to protect the viral replication process within the cell. By the time, the same mechanism was developed by the host cells to protect its own genetic material from viral attack along with the development of gene for histone proteins. Now, these genes are...