Protocells are considered a key step in the origin of life. Which of the following is NOT a characteristic typically associated with protocells?
Membrane-bound compartments
Simple metabolic activity
Ability to undergo fission
Developed DNA replication mechanisms
Related Questions
Which one of the following amino acid was not found to be synthesized in Miller’s experiment?
Glycine
Aspartic acid
Glutamic acid
Alanine
Proteinoids are
Carbohydrate structure consisting of branched sugars
Fatty acid structure consisting of branched fatty molecules
Protein structure consisting of branched amino acids
Protein structure consisting of unbranched amino acids
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 concept of chemical evolution is based on
Crystallization of chemicals
Interaction of water, air and clay under interse heat
Effect of solar radiation on chemicals
Possible origin of life by combination of chemicals under suitable environment conditions
The idea that the life originates from pre-existing life is referred as
Biogenesis theory
Special creation theory
Abiogenesis theory
Extraterrestrial theory
Cosmozoic theory was proposed by
Hermann Richter
Louis Pasteur
Svante Arrhenius
Jöns Jacob Berzelius
Life cannot originate from inorganic materials now because of
Low atmospheric temperature
High degree of pollution
High atmospheric oxygen
Absence of raw materials
Which of the following was absent in the atmosphere at the time of origin of life ?
In which era, life was absent?
Archaeozoic
Palaeozoic
Proterozoic
Azoic
First autotrophs on the primitive earth was/were
Aerobic
anaerobic
Both (1) and (2)
Photosynthetic protist
