Which of the following bacteria lack a cell wall?

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#Question id: 18960

#Unit 13. Methods in Biology

cDNA library do not require very large vectors hence which of the following is commonly used in cDNA library

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#Question id: 12339

#Unit 10. Ecological Principles

If a species is a keystone predator, then its removal from a community should

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#Question id: 18847

#Unit 13. Methods in Biology

You know that the protein you want to purify from a natural source forms a multimer with multiple sub-units giving a molecular weight in solution much bigger than visualised denatured on SDS-PAGE. There is only a small amount of the target protein in the total protein sample. Which of the following is an appropriate purification strategy?

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#Question id: 29478

#Unit 6. System Physiology – Plant

Which of the following is primary regulators of GA 

a. KNOXI gene 

b. GA2 oxidase 

c. (ACC) synthase

d. 2,4-D-related compounds

Which of the following is CORRECT 

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#Question id: 4573

#Unit 11. Evolution and Behavior

Which of the following pieces of evidence most strongly supports the common origin of all life on Earth?