Evolution(Origin of life; Biological evolution and evidences for biological evolution from Paleontology, comparative anatomy, embryology and molecular evidence); Darwin’s contribution... NEET Questions

Biology - Genetics and Evolution

Evolution(Origin of life; Biological evolution and evidences for biological evolution from Paleontology, comparative anatomy, embryology and molecular evidence); Darwin’s contribution... MCQ Questions


7.
S.L. Miller's experiment (1953) demonstrated the formation of:
A.
Cells from organic molecules
B.
Proteins from amino acids
C.
Nucleic acids from sugars
D.
Amino acids from inorganic gases
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ANSWER :
D. Amino acids from inorganic gases
8.
In Miller's experiment, the temperature maintained inside the flask was:
A.
500°C
B.
800°C
C.
100°C
D.
1000°C
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ANSWER :
B. 800°C
9.
The gases used by Miller in his experiment were:
A.
CO2, H2, NH3 and water vapour
B.
CH4, O2, N2 and water vapour
C.
CH4, H2, NH3 and water vapour
D.
CH4, H2, CO2 and water vapour
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ANSWER :
C. CH4, H2, NH3 and water vapour
10.
The first cellular forms of life are believed to have originated approximately:
A.
4500 million years ago
B.
2000 million years ago
C.
500 million years ago
D.
65 million years ago
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ANSWER :
B. 2000 million years ago
11.
The first non-cellular forms of life could have originated approximately:
A.
1 billion years back
B.
3 billion years back
C.
500 million years back
D.
2 billion years back
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ANSWER :
B. 3 billion years back
12.
Biogenesis means:
A.
Life originates from non-living matter
B.
Life originates from pre-existing life
C.
Life is created by divine power
D.
Life originates from outer space
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ANSWER :
B. Life originates from pre-existing life