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#Question id: 19458


How phase contrast and DIC microscopy are used to image live cells and unstained tissues?

#13. Methods in Biology
  1. Take advantage of differences in the contrast and thickness of cellular materials
  2. Take advantage of differences in the refractive index and thickness of cellular materials
  3. Live cells show bioluminiscence
  4. Take advantage of differences in chromosomes

Answer:- Option(s): 2


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#Question id: 3673

#3. Fundamental Processes

Which is a characteristic of E. coli DNA polymerases?

TLS Online TPP Program

#Question id: 3674

#3. Fundamental Processes

Which property is shared by E. coli DNA polymerase I and DNA polymerase III?

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#Question id: 3675

#3. Fundamental Processes

Which describes the role of primase during replication?

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#Question id: 3677

#3. Fundamental Processes

Which protein can catalyze the formation of phosphodiester bonds?

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#Question id: 3678

#3. Fundamental Processes

Which of the following protein can break covalent bonds?

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#Question id: 3679

#3. Fundamental Processes

A mutation in an E. coli cell becomes active half-way through a round of replication. The cell completes the round of replication normally but then cannot start a second round. Which protein could be mutated?

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