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TLS Online TPP Program

#Question id: 1459

Cells from advanced malignant tumors often have very abnormal chromosomes and an abnormal number of chromosomes. What might explain the association between malignant tumors and chromosomal abnormalities?

#Unit 4. Cell Communication and Cell Signaling

  1. Cancer cells are no longer density-dependent.

  2. Cancer cells are no longer anchorage-dependent.

  3. Cell cycle checkpoints are not in place to stop cells with chromosome abnormalities.

  4. Transformation introduces new chromosomes into cells.

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TLS Online TPP Program

#Question id: 1165

#Unit 4. Cell Communication and Cell Signaling

DAG activates:
TLS Online TPP Program

#Question id: 23562

#Unit 13. Methods in Biology

________ is the propagation of individual host cells containing a recombinant DNA molecule.
TLS Online TPP Program

#Question id: 18874

#Unit 9. Diversity of Life Forms

Plant spores are produced directly by  
TLS Online TPP Program

#Question id: 18722

#Unit 13. Methods in Biology

Which DNA ligase enzyme is used in genetic engineering?
TLS Online TPP Program

#Question id: 1024

#Unit 4. Cell Communication and Cell Signaling

The cell wall of Gram-positive bacteria