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TLS Online TPP Program

#Question id: 19458

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

#Unit 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
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TLS Online TPP Program

#Question id: 2654

#Unit 2. Cellular Organization

Regulation of the lac operon can be envisioned as regulation of enzyme synthesis by its
TLS Online TPP Program

#Question id: 2655

#Unit 2. Cellular Organization

Lac Operon will be turned on when
TLS Online TPP Program

#Question id: 2656

#Unit 2. Cellular Organization

In a cell as per the Operon Concept, the regulator gene governs the chemical reactions by
TLS Online TPP Program

#Question id: 2921

#Unit 2. Cellular Organization

During which stage of the cell cycle is the chromosome content of a mammalian liver cell 1n?
TLS Online TPP Program

#Question id: 2922

#Unit 2. Cellular Organization

Human genes/proteins that regulate the cell cycle are most easily isolated by:
TLS Online TPP Program

#Question id: 2923

#Unit 2. Cellular Organization

Injection of an immature Xenopus oocyte with MPF induces: