Which of the following triggers apoptosis?

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#Question id: 7154

#Unit 5. Developmental Biology

Cancer is believed to often arise from stem cells, rather than fully differentiated cells. Which of the following are consistent with this view?

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#Question id: 23221

#Unit 13. Methods in Biology

Unsectioned specimens can be used in which type of microscope?

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#Question id: 32581

#Unit 2. Cellular Organization

Which of the following motor protein has a central motor domain and does not walk at all, but uses the energy of ATP hydrolysis to depolymerize microtubule ends? 

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#Question id: 31041

#Unit 4. Cell Communication and Cell Signaling

Which of the following statement is incorrect regarding HER2?

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#Question id: 26572

#Unit 3. Fundamental Processes

Choose the following is incorrect statement about Polycomb or Pc-G proteins

a. Pc-G proteins do not initiate repression

b. Pc-G proteins initiate repression

c. They are responsible for maintainingrepression 

d. There are Polycomb repressive complexes: PRC1 and PRC2

e. PRC2 complexes contain histone deacetylases that inhibit transcription

f. PRC1 complex binds the methylated nucleosomes 

g. The PRC1 complex contains a ubiquitin ligase