Related Questions
Coacervates belong to category of
Cyanobacteria
Protozoans
Molecular aggregates
Molecular aggregate surrounded by lipid membrane
According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?
Methane
Oxygen
Hydrogen
Water vapour
Earth originated approximately
4500 million years ago
3600 million years ago
Between 1600-2600 million years ago
2.5 million years ago
The first enzyme on the primitive earth was/were
Proteins
DNA
RNA
Amino acids
For a long time it was believed that life came out of decaying and rotting matter like straw mud, etc.
This was the theory of
Catastrophism
Abiogenesis
Panspermia
Chemogeny
The first life on earth consists of
Single-celled prokaryotes (bacteria and archaea)
Multicellular eukaryotes (plants and animals)
Viruses
Complex proteins
Choose the incorrect option w.r.t. origin and evolution of life
Early Earth's atmosphere was reducing.
Early Earth's atmosphere was oxidizing.
Organic molecules can form spontaneously under reducing conditions.
The presence of free oxygen would have hindered the formation of organic molecules.
The Miller-Urey experiment provided evidence for which stage of the origin of life?
Formation of the first cells
Evolution of photosynthesis
Abiotic synthesis of organic monomers
Development of self-replicating molecules
The first non-cellular form of life could have originated
3 billion years back
2 billion years back
4 billion years back
1 billion years back
The abiogenesis occurred about how many billion years ago?
1.2 billion
1.5 billion
2.5 billion
3.5 billion
