originoflife

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Origin of Life: 

Origin of Life K. Sathasivan

Are we alone?: 

Are we alone? Yes No

How do you think life originated on earth?: 

How do you think life originated on earth? Extraterrestrial aliens brought it Came with meteors from other planets Some superhuman powers created it Chemical from primordial soup combined to make life None of the above

History of Life: 

History of Life

Stromatolites: 

Stromatolites

Early prokaryotes: 

Early prokaryotes

Cyanobacteria fossils: 

Cyanobacteria fossils

Possible Sources of Life’s Origin: 

Possible Sources of Life’s Origin

Possible Steps in the Origin of Life: 

Possible Steps in the Origin of Life Protobionts and Liposomes

Which came first?: 

DNA  RNA  PROTEIN (Genetic (Information (Catalytic and Information) and catalytic) Structural) DNA RNA Protein Carbohydrates Lipids Which came first?

Abiotic RNA Replication: 

Abiotic RNA Replication

Primitive RNA and Proteins : 

Primitive RNA and Proteins

Which of the following is/are testable hypothesis about origin of life on earth?: 

Which of the following is/are testable hypothesis about origin of life on earth? Extraterrestrial aliens brought it Came with meteors from other planets Some superhuman powers created it Chemical from primordial soup combined to make life None of the above

The Five Kingdom System: 

The Five Kingdom System

Domain Systems: 

Domain Systems