Which theory arguments that life on earth came from outer space?
Abiogenesis
Panspermia
Endosymbiosis
Spontaneous Generation
Related Questions
Abiogenesis first, but biogenesis ever since was said by
Louis Pasteur
Charles Darwin
Alexander Oparin
Stanley Miller
Which of the following was NOT a necessary step in the origin of life?
Synthesis of organic monomers
Formation of protobionts
Development of photosynthesis
Formation of DNA-based genetic systems
Oparin and Haldane’s theory is also called
Panspermia Theory
Primordial Soup Theory
Spontaneous Generation Theory
Endosymbiotic Theory
How did George Cuvier accounts for the extinctions in nature
Extinctions never occur there are unexplored parts of the globe where the organisms that appears to have gone extinct may still live
Extinctions occur when the slow adaptations of the organisms overtime to their environment are not quick enough to help them respond to changing conditions
Extinctions occur at random, they do not reflect God’s will
Extinctions occur due to the catastrophic events
Which macromolecule is believed to have been the first genetic material?
DNA
Protein
RNA
Carbohydrate
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.
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
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
The concept that the species have changed over a long period of time is know as
Ecosystem
Spontaneous generation
Organic evolution
Genetic recombination
A microsphere is a …A… collection of organic macromolecules with double layered outer boundary. The term microsphere was given by …B…
Complete the given statement by choosing correct options for A and B with reference to NCERT textbook
A-non-living, B-Sydney Fox
A-living, B-Oparin
A-non-living, B-Haldane
A-living, B-Altman
