NURSING ANM AND GNM

Detailed explanation-1: -Still, viruses have some important features in common with cell-based life. For instance, they have nucleic acid genomes based on the same genetic code that’s used in your cells (and the cells of all living creatures). Also, like cell-based life, viruses have genetic variation and can evolve.

Detailed explanation-2: -According to the information in the Venn diagram, the only structure or component that a virus and a cell have in common is nucleic acid. The virus lacks all the other cellular structures, and without them, it cannot exist, thrive, and reproduce on its own.

Detailed explanation-3: -Viruses have several common characteristics: they are small, have DNA or RNA genomes, and are obligate intracellular parasites. The virus capsid functions to protect the nucleic acid from the environment, and some viruses surround their capsid with a membrane envelope.

Detailed explanation-4: -Reverse transcription is found in retroviruses. DNA was believed to be the sole medium for genetic information storage. Furthermore, Watson and Crick’s central dogma assumed that information flowed “one-way” from DNA to RNA to protein.

Detailed explanation-5: -Viruses contain either RNA or DNA as their genetic material. DNA in most organisms is a double-stranded structure, based on Watson and Crick pairing; however, in viruses, DNA and RNA can be either single-stranded or double-stranded.