Sourav PanApril 30, 2025

What is the three domain classification system?

Sourav PanApril 30, 2025

Answered

The three-domain classification system is a hierarchical framework that categorizes all living organisms into three primary domains based on genetic and molecular data. Introduced by Carl Woese in 1990, this system utilizes the sequences of ribosomal RNA genes to determine evolutionary relationships. The three domains are: Archaea, Bacteria, and Eukarya. This system replaced the previous five-kingdom model, offering a more accurate depiction of the evolutionary divergence of life forms.

Did this page help you?

Start Asking Questions Cancel reply

Quiz Leaderboard

1st

Meenakshi

Score: 100%

Questions: 20

2nd

Debabrata

Score: 100%

Questions: 20

3rd

BandzzzzTheONESIMELANE

Score: 95%

Questions: 20

4th

Nischal

Score: 90%

Questions: 10

5th

Priyanka

Score: 90%

Questions: 10

6th

Sourav

Score: 90%

Questions: 20

7th

OTLOTLENG

Score: 70%

Questions: 10

8th

Martin

Score: 65%

Questions: 20

9th

Meenakshi

Score: 55%

Questions: 20

10th

Meenakshi

Score: 55%

Questions: 20

Click "Create Mock Test" to start a quiz.
Select categories and the number of questions, then click "Submit" to begin.
After completing the quiz, enter your name and email, then click "Submit" to view your score.
Your score is shown as a percentage (e.g., 5 correct out of 10 is 50%).
The leaderboard displays your name, score percentage, and total questions answered.

Click here to Create Mock Test