According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?
Methane
Oxygen
Hydrogen
Water vapour
Related Questions
Birbal Sahni was
Palaeobotanist
Zoologist
Ornithologist
Palaeozoologist
Which units are used to measure the stellar distances
Metres
Light years
Which stage in the origin of life is characterized by the aggregation of organic polymers into membrane-bound structures?
Synthesis of organic monomers
Synthesis of organic polymers
Formation of protobionts
Formation of DNA-based genetic systems
Earth originated approximately
4500 million years ago
3600 million years ago
Between 1600-2600 million years ago
2.5 million years ago
Which of the following gases was likely NOT abundant in the early Earth's atmosphere?
Methane
Ammonia
Water vapor
Oxygen
Abiogenesis first, but biogenesis ever since was said by
Louis Pasteur
Charles Darwin
Alexander Oparin
Stanley Miller
Artificial synthesis of ATP, porphyrin and nucleotides was detained by
Abundance of inorganic precursors in the environment
Lack of knowledge about the structure of biomolecules and the pathways for their synthesis
Presence of oxygen in the early Earth's atmosphere
Easy availability of energy sources like UV radiation and lightning
In the early earth, organic acids were produced by the combination of with
Ammonia and methane
Hydrogen
Organic matter
Sulphates and nitrates
The concept that the species have changed over a long period of time is know as
Ecosystem
Spontaneous generation
Organic evolution
Genetic recombination
Early Greek thinkers thought units of life called
spermata
cells
atoms
molecules
