EASY
Earn 100

Swan-necked flask experiment was done by

50% studentsanswered this correctly

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
The origin of life on earth is known as 
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
According to Abiogenesis, life originated from:
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
What is the theory of spontaneous generation? Name the scientist who dismissed it.
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
Theory of Biogenesis was proposed by
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
The idea of survival of the fittest was proposed by
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
Explain the concept of ‘struggle for existence’.
MEDIUM
Biology>Genetics and Evolution>Evolution>Origin of Life
Which theory states, "Life arises from pre-existing organisms"?
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?
HARD
Biology>Genetics and Evolution>Evolution>Origin of Life
Describe Oparin-Haldane theory on the origin of life.
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
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
What are the coacervates?
EASY
Biology>Genetics and Evolution>Evolution>Origin of Life
Select the CORRECT match.
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

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
Which of the following is an example of convergent evolution?
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?
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?