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TLS Online TPP Program

#Question id: 1537

Transformation of mature cells may also occur due to aberrant expression of stemness genes, resulting in cell clones with a dedifferentiated phenotype and self-renewing capacity resembling stem cells. Recent experimental evidence supporting this proposal has been provided with the induction of adult somatic cells into pluripotent stem (iPS) cells through ectopic expression of four genes encoding the pluripotency factors Oct4 and Sox2, the transcription factor Klf4, and the oncoprotein c-Myc in mouse or human fibroblasts. However, along with pluripotency comes the capability of generating teratomas. On the basis of the above information which of the following outcome is most appropriate?

#Unit 4. Cell Communication and Cell Signaling

  1. This tumorigenicity could be partly explained by the enforced expression of Oct4.

  2. This tumorigenicity could be partly explained by the enforced expression of Sox2.

  3. This tumorigenicity could be partly explained by the enforced expression of Klf4.

  4. This tumorigenicity could be partly explained by the enforced expression of c-Myc.

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TLS Online TPP Program

#Question id: 26949

#Unit 10. Ecological Principles

Calculate the Population doubling time in Geometric growth, if the finite rate of population is 1.2?
TLS Online TPP Program

#Question id: 20995

#Unit 12. Applied Biology

Substituent group addition to toluene was not a single attack by succinyl-coa, but two separate reactions involving two molecules of acetyl-coa to give rise to the 
TLS Online TPP Program

#Question id: 19892

#Unit 12. Applied Biology

Which one of the following sensors detects the nearby objects?
TLS Online TPP Program

#Question id: 12605

#Unit 10. Ecological Principles

How is it that satellites can detect differences in primary productivity on Earth? 
TLS Online TPP Program

#Question id: 9596

#Unit 6. System Physiology – Plant

The reaction centre chlorophyll is transiently in an oxidized state after losing an electron and before being re-reduced by its electron donor, what characteristics has been shown by chlorophylls in an oxidized state?