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Since virus can insert DNA, into the host's DNA, virus could theoretically, cause the DNA to change, even quicker than just in situ changes? For one thing, viral DNA insertions will get past the proofreader enzymes used during cell cycles. Do virus add material to the junk DNA, which controls the configurational context for active genes? Configuration context is how the junk genes define the active shape of the DNA, which, in turn, defines the potentials seen by the active genes. Picture you are making raisin bread. The raisons are analogous to the active genes, and the dough are junk genes. Depending how you prepare and kneed the dough, can determine the raisin distribution in each slice. The slice distribution, in turn, will impact how the raisons will play off each other, each bite. This can impact cellular differentiation control and/or introduce new differentiations; slice of raisin bread with all the raisins in the middle.
... Could you name some positive aspects about viruses in nature and in human evolution? ...
Dr. Sharp, who won a Nobel Prize for elucidating details of our genetic code. Base for nucleic base, he said, “we humans are well over 50 percent viral.”
Viruses insert RNA into a cell, not DNA!
Quote from: Alan McDougallViruses insert RNA into a cell, not DNA!There are various kinds of virus, categorized by the nature of their genetic code. Most use RNA, but some use single-stranded DNA and some use double-stranded DNA.In some cases (like HIV), the virus transcribes itself into the host's DNA before it can begin replicating. If this virus infected an egg or sperm cell, this viral DNA could be passed on to a child, and appear in every cell in their body.See: https://en.wikipedia.org/wiki/Virus#Genome
I stand correct!, however it seems the viruses with RNA are most most dangerous?Are viruses alive or somewhere between a living thing and nonliving?
Could you name some positive aspects about viruses in nature and in human evolution?