The Miller-Urey experiment attempted to simulate early Earth conditions to test the chemical origin of life. Which of the following gaseous components was NOT included in their experimental setup, despite being potentially present in the early atmosphere?
Methane ()
Ammonia ()
Water vapor ()
Oxygen ()
Related Questions
According to the current understanding of abiogenesis, which of the following represents the likely order of events leading to the first cells?
Polymerization → Synthesis of monomers → Protobiont formation → DNA-based genetic systems
Synthesis of monomers → Polymerization → Protobiont formation → DNA-based genetic systems
Protobiont formation → Synthesis of monomers → Polymerization → DNA-based genetic systems
DNA-based genetic systems → Protobiont formation → Polymerization → Synthesis of monomers
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
What did Miller obtained from his experiment?
Amino acid
Organic compounds
Peptide
All of these
Life cannot originate from inorganic materials now because of
Low atmospheric temperature
High degree of pollution
High atmospheric oxygen
Absence of raw materials
Coacervates are
Protobionts having polysaccharide, protein and
Protein aggregate
Protein and lipid aggregates
None of the above
First cell produced on earth is
Protobiont
Protozoa
Metazoa
None of these
The idea that the life originates from pre-existing life is referred as
Biogenesis theory
Special creation theory
Abiogenesis theory
Extraterrestrial theory
Spontaneous generation theory was given by
F Redi
L Spallanzani
Louis Pasteur
Aristotle
