A train 220m long passed a pole in 20 seconds. How long it will take to pass a platform 550m long?

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#Question id: 31021

#Unit 4. Cell Communication and Cell Signaling

The affinity of a signal molecule’s binding to its receptor is typically quantified by the: 

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#Question id: 3994

#Unit 3. Fundamental Processes

Which one of the following statements about eukaryotic gene regulation is correct?

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#Question id: 11596

#Unit 6. System Physiology – Plant

Which enzyme catalyzes  all the reactions involving the successive oxidation steps of carbon 20 between GA53 and GA20, including the removal of C-20 as CO2?

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#Question id: 15379

#Unit 8. Inheritance Biology

What are the possible offspring from a type A mother and a type AB father?

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#Question id: 23214

#Unit 13. Methods in Biology

Which type of interaction forces are involved in atomic force microscope?