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Oparin and Haldane proposed:...

Oparin and Haldane proposed:

A

the theory of Natural Selection.

B

that mutations caused speciation

C

that migration affect genetic equilibrium.

D

that the first formof life could have come from pre-existing non-living organic molecules.

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The correct Answer is:
D
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Read the following sentences carefully and choose the option having correct statements, a. Units of life called spores were transferred to different planets including earth according to theory of spontaneous generation. br b. Oparin and Haldane proposed that life arises from non-living organic molecules by chemical evolution. br c. Psilophyton can be considered as ancestor of conifers . br d. Coelacanth possibly evolved into the first amphibians.

State the hypothesis proposed by Oparin and Haldane. How was it experimentally proved by S.L. Miller ? Explain.

State two postulates of Oparin and Haldane with reference to origin of life

According to Oparin and Haldane, the primitive atmosphere on earth was having the following mixture of gases

(b) How did S.L. Miller provide an experimental evidence in favour of Oparin and Haldance's hypothesis ? Explain.

According to Oparin and Haldane theory that Ist form of life originated in :-

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GRB PUBLICATION-ORIGIN OF LIFE-ORIGIN OF EUKARYOTIC CELL
  1. The synthesis of complex molecules from simple molecules was proved by...

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  2. According to abiogenesis life originates from:

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  3. Which one does not confirm to the theory of "Biogenesis"?

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  4. Miller -Urey's experiment mixtue had the following except:

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  5. In the early earth, water and CO(2) were produced by the combination o...

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  6. The first fossil evidence of fossil dates back from :

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  7. According to available evidence, life evolved through the process of:

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  8. Who proposed that the first form of life could have come from pre-exis...

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  9. The important gas which was absent during the origin of life on Earth:

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  10. The prebiotic atomsphere of the Earth was of a reducing nature. It was...

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  11. Which gas was probably least abundant in the early atomsphere?

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  12. Choose the wrong statement.

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  13. Which compounds were used by Miller in his experiment for obtaining am...

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  14. Oparin and Haldane proposed:

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  15. Stanley Miller and Urey proved abiotic origin of life by using one of ...

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  16. According to the theory of spontaneous generation :

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  17. Which gas was not used in Miller's experiment?

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  18. Which was the first catalytic molecule during evolution of life?

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  19. Following are the two statements regarding the origin of life : A." ...

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  20. Which of the following is the correct sequence of events in the origin...

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