Big-Bang theory attempts to explain the origin of
Earth
Solar-system
Universe
Contenents
Related Questions
The first life on earth consists of
Single-celled prokaryotes
Multicellular eukaryotes
Small mammals
Complex plants
Arrange the following steps in the origin of life in the correct chronological order:
I. Synthesis of organic polymers
II. Formation of protobionts
III. Formation of DNA-based genetic systems
IV. Synthesis of organic monomers
I, II, III, IV
IV, I, II, III
II, III, I, IV
III, I, II, IV
Origin of life occurred in
Precambrian
Coenozoic
Palaeozoic
Mesozoic
Spontaneous generation theory was given by
F Redi
L Spallanzani
Louis Pasteur
Aristotle
Which of the following best describes the significance of coacervates in the context of the origin of life?
They are fossilized evidence of the earliest life forms on Earth.
They prove that RNA was the primary genetic material in early life.
They demonstrate how membrane-bound compartments, crucial for cellular life, could have arisen spontaneously from organic molecules.
They explain the mechanism by which the first self-replicating molecules were formed.
Synthesis of amino acids to prove that amino acids were formed in primitive ocean was experimentally proved by
Sydney Fox
Oparin
Haldane
Stanley Miller
The idea that the life originates from pre-existing life is referred as
Biogenesis theory
Special creation theory
Abiogenesis theory
Extraterrestrial theory
First cell produced on earth is
Protobiont
Protozoa
Metazoa
None of these
Which one of the following amino acid was not found to be synthesized in Miller’s experiment?
Glycine
Aspartic acid
Glutamic acid
Alanine
The abiogenesis occurred about how many billion years ago?
1.2 billion
1.5 billion
2.5 billion
3.5 billion
