EASY
Earn 100

Which one of the following is incorrect about the characteristic of protobionts as envisaged in the abiogenic origin of life?

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Important Questions on Evolution

HARD
Biology>Genetics and Evolution>Evolution>Origin of Life
Which of the following is the correct sequence of events in the origin of life?
(i) Formation of protobionts
(ii) Synthesis of organic monomers
(iii) Synthesis of organic polymers
(iv) Formation of DNA-based genetic systems
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life
Which theory states, "Life arises from pre-existing organisms"?
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life
Following are the two statements regarding the origin of life:

(i) The earliest organisms that appeared on the earth were non-green and presumably anaerobes.

(ii) The first autotrophic organisms were the chemoautotrophs that never released oxygen.

Of the above statements which one of the following options is correct?
HARD
Biology>Genetics and Evolution>Evolution>Origin of Life

Give one significant contribution of the following scientist.

Wallace

EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
Theory of Biogenesis was proposed by
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life

Assertion (A): There is a sufficient reason to believe that first cells on the planet lived in an atmosphere lacking oxygen.
Reason (R): Thus even all living organisms retain the enzymatic mechanism to completely oxidise glucose without the help of oxygen. 

The correct option among the following is:

EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
What is the theory of spontaneous generation? Name the scientist who dismissed it.
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life
Why coacervates are called primitive cells?
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
The primary gases that were used by Miller in his experiment are
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
Which of the following gas was absent in the atmosphere at the time of origin of life?
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life
What is reproductive fitness? Explain it with the help of an example.
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask
HARD
Biology>Genetics and Evolution>Evolution>Origin of Life
Explain the evolution of long neck of giraffe according to Charles Darwin.
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
Select the CORRECT match.
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
What are the coacervates?
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life
The origin of life on earth is known as 
HARD
Biology>Genetics and Evolution>Evolution>Origin of Life
Write briefly the chemical origin of life on earth.
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life
Describe four points of the theory of evolution of organisms.
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
After about how many years of formation of earth, life appeared on this planet?
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
Who proposed that the first form of life could have come from pre-existing non-living organic molecules?