THE MOLECULAR BASIS OF INHERITANCE
THE GENETICS OF VIRUSES AND BACTERIA
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
one
|
|
|
two
|
|
|
three
|
|
|
six
|
Detailed explanation-1: -The three domains of life are Archaea, Bacteria and Eukarya.
Detailed explanation-2: -According to the domain system, the tree of life consists of either three domains such as Archaea, Bacteria, and Eukarya, or two domains consisting of Archaea and Bacteria, with Eukarya included in Archaea. The first two are all prokaryotes, single-celled microorganisms without a membrane-bound nucleus.
Detailed explanation-3: -The three domains are the Archaea, the Bacteria, and the Eukarya. Prokaryotic organisms belong either to the domain Archaea or the domain Bacteria; organisms with eukaryotic cells belong to the domain Eukarya.
Detailed explanation-4: -Summary. That Bacteria, Archaea and Eukarya (eukaryotes) represent three separate domains of Life, no one having evolved from within any other, has been taken as fact for three decades. Recent work shows this to be untrue.
Detailed explanation-5: -Eukarya arose from well within Archaea and are specifically related to newly discovered archaeal species with eukaryote-like features. We owe to Carl Woese and George Fox the current understanding that all living things are members of one of three discretely defined ‘domains’-Bacteria, Archaea or Eukarya [1, 2].