Which of the following index value increasing towards late successional community?

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#Question id: 10778

#Unit 6. System Physiology – Plant

Essential oils are the mixture of volatile,

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#Question id: 3463

#Unit 11. Evolution and Behavior

Which one of the following statements is INCORRECT?

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#Question id: 13057

#Unit 13. Methods in Biology

Precision will be reduced, but yield will be increased

Optimisation of a PCR reaction is often a compromise between the competing demands for precision, efficiency and yield. Although the specific effects may vary, generally, increasing the annealing temperature will increase non-specific primer binding and reduce precision. Increasing the length of the elongation phase will reduce the proportion of incomplete newly-synthesised strands and therefore increase yield. In this case, the potential effect on efficiency is unclear. Increasing the elongation phase would increase the reaction time, but the time taken to ramp down to a lower annealing temperature would be reduced.

How primer concentration leads to decrease in PCR efficiency?

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#Question id: 16786

#Unit 13. Methods in Biology

What is the median of 7.1, 3.2, 5.8, 8.9, 6.5, 10.2, 9, 12.5 

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#Question id: 4872

#Unit 8. Inheritance Biology

F1 heterozygous females are test-crossed with males and produced 1800 progeny The interference between these genes is 0.4. What number is of observe double cross over?