Biology, asked by qOooooooooOq, 1 year ago

Viruses are most primitive organisms or most advanced organisms?
please provide me a logical answer

Answers

Answered by JOKERV1612
1
Viruses are considered primitive.

As in primitive ocean their was formation of nucleoprotein and viruses evolved form those nucleoproteins.

Primitive viruses could grow in primitive ocean as it's composition was similar to our cell fluid.

But today viruses could not grow independently in ocean,they require a living host. Since living host was not present at that time viruses evolved from ocean and after that bacteria evolved.

So we could say bacteria evolved after viruses.


qOooooooooOq: sorry but I saw same answer on Quora but I was not satisfied with that please explain me in your words
JOKERV1612: According to Caetano-Anolles’s microbial family tree, viruses are ancient – but they were not the first form of life. In fact, his family tree suggests viruses and bacteria share a common ancestor – a fully functioning, self-replicating cell that lived around 3.4 billion years ago, shortly after life first emerged on the planet. From this cell, bacteria have evolved in the direction of increasing complexity, while viruses have gradually shed genes they found they didn’t need
JOKERV1612: until they could no longer even reproduce on their own.
JOKERV1612: and they are also an important aspect for human evolution too for example researchers speculate that more than 100 million years ago a viral infection in a primitive mammal uploaded a gene that helped the placenta evolve. Syncytin is a protein viruses use to fuse cells together in order to hop from one host cell to the next. In mammals it fuses placenta cells with the uterus, allowing the foetus to draw nutrients from its mother.
JOKERV1612: samjha k hindi main samjhau ??
JOKERV1612: and thanks for the question. mujhko bhi bahut kuch nya pta chala virus k bare me
qOooooooooOq: I can understand English, okay
qOooooooooOq: and it was good answer
JOKERV1612: sorry i dont want to offend u.
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