Origin of Life
Various theories of origin of life and experimental evidences
Questions
Which were the first formed organisms which are supposed to be a link between living and non-living?
- Bacteria
- Viruses
- Blue green algae
- Amoeba
- Fungi
What did primitive atmosphere of Earth contain?
- Oxygen, ammonia and methane
- Carbon dioxide, ammonia and methane
- Carbon dioxide, oxygen and methane
- Water, methane and ammonia
- Water, oxygen and carbon dioxide
According to which theory is life distributed throughout the cosmos in the form of resistant spores of living organisms?
- Theory of panspermia
- Theory of special creation
- Theory of eternity
- Theory of biogenesis
- Theory of spontaneous generation
The event of formation of Earth and other planets by explosion of a single homogenous matter, i.e. yelm, was termed as
- special creation
- eternity
- biogenesis
- big bang
- cosmozoa
What was the source of energy for earlier autotrophs?
- Solar energy
- Wind energy
- Anaerobic breakdown
- Sea waves
- Magnesium prophyrin
Which theory is supported by Nobel Prize winning scientist H. F. C. Crick?
- Theory of eternity
- Theory of panspermia
- Theory of special creation
- Theory of biogenesis
- Theory of spontaneous generation
What is referred to by Haldane as 'the hot dilute soup'?
- A sea containing derivatives of only hydrocarbons
- A sea containing molecules of organic substances
- A sea of simple compounds
- A sea of minerals
- A sea of simple hydrocarbons
Who proposed the symbiotic theory of origin of organisms?
- Miller and Urey
- Wallin
- Raff and Mahler
- Uzzell and Spolsky
- Ris and Plant
Which gas converted the earlier reducing atmosphere into oxidising one?
- Carbon dioxide
- Oxygen
- Hydrogen
- Methane
- Ammonia
The first formed primary organisms were named as
- protoviruses
- coacervates
- protists
- ebioants
- free genes
What did the Miller-Urey's experiment prove?
- Biochemical theory of origin of life
- Theory of spontaneous generation
- Theory of eternity
- Theory of biogenesis
- Symbiotic theory of evolution of eukaryotic cells
What did Oparin named nucleic acids which were capable to replicate but were not surrounded by any membrane?
- Coacervates
- Protovirus
- Ebioants
- Free genes
- Microspheres
What is the process of formation of living cells from inorganic and organic compounds called?
- Biogenesis
- Abiogenesis
- Miracle of god
- Big bang
- Panspermia
Who proved biogenesis by using goose-neck flask?
- Louis Pasteur
- Abbe Spallan-zani
- Francisco Redi
- Joseph Needham
- Van Helmont
Who wrote the book titled 'The Origin of Life on Earth'?
- Charles Darwin
- A. I. Oparin
- Ernst Haeckel
- Stanley Miller
- Louis Pasteur