Question

Three domains of life was proposed by whom and when​

Answer 1

Answer:

Carl Woese and associates proposed the three-domain system in 1990, which splits cellular life forms into archaea, bacteria, and eukaryote domains.

Explanation:

On the basis of discrepancies in 16S rRNA genes, Woese proposed that bacteria, archaea, and eukaryotes all evolved independently from a poorly developed genetic machinery progenitor known as a progenote. He considered each line of descent as a territory, separated into multiple kingdoms, to reflect these primary lines of lineage. Initially, he divided prokaryotes into two groups: Eubacteria (now Bacteria) and Archaebacteria (now Archaea). Woese coined the term "kingdom" to describe the three fundamental phylogenic groups, and it was extensively used until 1990, when the term "domain" was adopted.