MCQ ON ORIGIN OF LIFE class 12 for NEET

MCQ ON ORIGIN OF LIFE class 12 for NEET | ORIGIN OF LIFE class 12 | MCQ ORIGIN OF LIFE with Answer | Check the below NCERT MCQ question for class 12 Biology based on the with Answers.

MCQ ON ORIGIN OF LIFE class 12 for NEET

MCQ ON ORIGIN OF LIFE class 12 for NEET

MCQ on ORIGIN OF LIFE class 12 Biology with answers were prepared based on the latest pattern.We have provided class 12 Biology MCQs questions on ORIGIN OF LIFE with Answers to help students understand the concept very well.

MCQ ON ORIGIN OF LIFE is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23, 2023-24

Introduction:
Evolutionary biology is the study of history of life forms on earth.To understand the changes in flora and fauna that have occurred over millions of years on earth , we must have an understanding of the context of origin of life , of stars, of earth and indeed universe itself.This is the story of origin of life and evolution of life forms or biodiversity on planet earth in the context of evolution of earth and against the background of evolution of Universe itself.

MCQ ON THE ORIGIN OF LIFE class 12 for NEET

1.The First organisms were

(a) chemoauutotrophs
(b) chemohetotrophs
(c) autotrophs
(d) eukaryotes

Ans (b) chemohetotrophs

2. The most primitive cell like chemical aggregates capable of growth and division were

(a) chemohetotrophs
(b) Eobionts
(c) Procaryotes
(d) microspheres

Ans. (d) microspheres

3. Russian scientist who proposed the theory of origin of life was

(a) oparin
(b) Haldane
(c) Miller
(d) Fox

Ans. (a) Oparin

4. Under certain conditions scientist have got cell like structure but without its true organisation.They are called

(a) Eobionts
(b) Protists
(c) Coacervates
(d) Microbes

Ans.(c) Coacervates

5.Organic compounds first evolved on earth and required for origin of life were

(a) urea and amino acids
(b) proteins and nucleic acid
(c) proteins and amino acid
(d) urea and nucleic acid

Ans.(c) proteins and amino acid

6. First photosynthetic organism to appear on earth were

(a) bacteria
(b) green algae
(c) cyanobacteria
(d) bryophytes

Ans.(a) bacteria

7. Oparin’s theory is based on

(a) artificial synthesis
(b) spontaneous generation
(c) God’s creation
(d) panspermia

Ans.(a) artificial synthesis

8. Coacervates are

(a) lipoprotein
(b) mixture of ammonia , carbohydrates and water
(c) colloidal suspension
(d) none of the above

Ans.(c) colloidal suspension

9. Who demonstrated that life comes from life with the help of flask with boiled broth.

(a) Redi
(b) Pasteur
(c) Van Helmont
(d) Arrhenius

Ans. (b) Pasteur

10. Most advanced theory of origin of life is that

(a) catastrophic
(b) Haldane and Oparin
(c) cosmozoic
(d) spontaneous

Ans. (b) Haldane and Oparin

11. Spark discharge apparatus for testing chemical origin of life was designed by

(a) Urey and Miller
(b) Jacob and Monod
(c) Oparin and Haldane
(d) all the above

Ans.(a) Urey and Miller

12. Theory of origin of life was proposed by

(a) Tansley
(b) Oparin
(c) Darwin
(d) Malthus

Ans . (b) Oparin

13. Which is the most important for origin of life ?

(a) oxygen
(b) water
(c) nitrogen
(d) carbon

Ans.(b) water

15. Theory of spontaneous creation was supported by

(a) Von Helmont
(b) Redi
(c) Spallanzi
(d) all the above

Ans. (a) Van Helmont

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16. According to theory of abiogenesis , life originates from

(a) non – living
(b) chemicals
(c) spontaneously
(d) other planets

Ans.(a) non – living

17. In Miller ‘s experiment , the following was not part of the starting chemicals

(a) H2S
(b) H2
(c) NH3
(d) CH4

Ans.(a) H2S

18. Which was the first catalytic molecules during evolution of life.

(a) DNA
(b) rRNA
(c) tRNA
(d) mRNA

And.(b) rRNA

19.S.L. Miller’s closed flask contained

(a) CH4
(b) NH3 and water vapours
(c) H2
(d) All the above

Ans. (d) All the above

20. Microspheres possesed a membrane of

(a) lipid and protein
(b) lipid
(c) carbohydrates
(d) fats

Ans.(b) lipids

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Balram Saw

My name is Balram Saw and by profession, I am a lecturer. I did my masters in M.sc Zoology. On this blog, I share all the information related to biology.

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