How many half-lives should have elapsed if 6.25% of the parent isotope remains in a fossil at the time of analysis?

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#Question id: 10563

#6. System Physiology – Plant

The rate of diffusion depend upon

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#Question id: 5262

#8. Inheritance Biology

Which of the following characteristics is not true of a plasmid?

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#Question id: 11913

#10. Ecological Principles

During the rate of succession several factors would be observe at the pioneer as well as climax community;

Match the community stages with its given characters;

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#Question id: 18900

#13. Methods in Biology

Which statement is correct regarding ratio of half-life of radioactive material to its mean life?

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#Question id: 19362

#13. Methods in Biology

What is the size of fragments that can be obtained by using a phagemid vector?