Which one of the following amino acid was not found to be synthesized in Miller’s experiment?
Glycine
Aspartic acid
Glutamic acid
Alanine
Related Questions
Origin of life as a result of chemical evolution was properly explained by
I. Fox II. Oparin
III. Wateson IV. Haeckel
V. Mendel VI. Crick
Choose the correct option
I and II
III and IV
V and VI
Only II
Which is still a favourite idea for some astronomers
Spores
Panspermia
Gamets
Sperms
The gases condensed under …A… and formed the galaxies of the present day universe. In the solar system of the milky way galaxy, earth was supposed to have been formed about …B… back. There was no atmosphere …C… on the earth. Water vapour, …D… carbon dioxide and ammonia released from molten mass covered the surface.
Choose the correct option for A, B, C and D to complete the given paragraph with reference to NCERT textbook
A-Gravitation, B-4.5 billion years, C-Early, D-Methane
A-Acceleration, B-4.5 billion years, C-Early, D-Methane
A-Acceleration, B-4.5 billion years, C-Early, D-Ethane
A-Gravitation, B-4.5 billion years, C-Early, D-Ethane
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
Origin of life as a result of chemical evolution has been properly explained by or the most logical biochemical theory of origin of life has been given by
Stanley Miller
Darwin
A I Oparin
S Fox
According to the heterotroph hypothesis, the first life on the earth was able to
Synthesis its food from inorganic compounds
Feed upon carbohydrates produced by autotrophs
Feed upon available nutrients in the environment
Carry on photosynthesis instead of respiration
What is the significance of coacervates in the origin of life?
They are the first true cells
They demonstrate the potential for membrane-bound structures to form spontaneously
They are self-replicating molecules
They prove that life originated in the ocean
The sequence of origin of life could be
Organic materials → inorganic materials → colloidal aggregate → eobiont → cell
Inorganic materials → organic materials → colloidal aggregate → eobiont → cell
Inorganic materials → organic materials → eobiont → cell → colloidal aggregate
Organic materials → inorganic materials → eobiont → cell → colloidal aggregate
Which of the following is NOT a key feature of the Oparin-Haldane theory of the origin of life?
Formation of organic monomers from inorganic gases
Presence of free oxygen in the early atmosphere
Polymerization of monomers to form macromolecules
Coacervates as precursors to the first cells
Coacervates are
Protobionts having polysaccharide, protein and
Protein aggregate
Protein and lipid aggregates
None of the above
