Origin of life occurred in
Precambrian
Coenozoic
Palaeozoic
Mesozoic
Related Questions
The abiogenesis occurred about how many billion years ago?
1.2 billion
1.5 billion
2.5 billion
3.5 billion
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
The evolution of which metabolic process significantly altered Earth's atmospheric composition?
Chemosynthesis
Fermentation
Photosynthesis
Respiration
Theory of special creation arguments that: I. all living organisms were created as such, II. the diversity was always the same since creation, III. earth is 4000 years old. Choose the right option to complete the given statement
I and II
II and III
I and III
I, II and III
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
The RNA world hypothesis proposes that RNA, not DNA, was the primary genetic material in early life. Which characteristic of RNA makes it a more plausible candidate for this role compared to DNA?
Double-stranded structure
Higher stability
Catalytic activity
Presence of thymine
The first cell like structure was appeared in
Air
Mountain
Ocean
Soil
Theory of spontaneous generation or abiogenesis was first disproved by
A R Wallace
Francisco Redi
Louis Pasteur
A I Oparin
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 idea that the life originates from pre-existing life is referred as
Biogenesis theory
Special creation theory
Abiogenesis theory
Extraterrestrial theory
