個句我都補左句 FF
你問一問就走左去google
當然virus origin 都係流於理論階段
Random google 左篇有用quote 既文
一般virus origin 有3個hypotheses
1. The progressive, or escape, hypothesis states that viruses arose from genetic elements that gained the ability to move between cells;
2. the regressive, or reduction, hypothesis asserts that viruses are remnants of cellular organisms; and
3. the virus-first hypothesis states that viruses predate or coevolved with their current cellular hosts.
頭兩個就係我想講既virus 係生物甩出黎既野eg transposon 個d 而頭兩點都係支持先生物後病毒
而第三點比較有趣 佢postulated 世界本身係有d 識self replicate 既病毒(如有 佢應該係RNA virus 因為 RNA 先可能有enzymatic effect)
佢地慢慢進化成有cell membrane 既生物
咁到有左host之後佢地就變到唔識replicate
Source:
https://www.nature.com/scitable/topicpage/the-origins-of-viruses-14398218/