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#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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#Question id: 14958

#Unit 6. System Physiology – Plant

Where the matrix polysaccharides are synthesized by

TLS Online TPP Program

#Question id: 14957

#Unit 6. System Physiology – Plant

the xylan backbone may be synthesized by a distinctly different group of synthases, including synthases named;

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#Question id: 14956

#Unit 6. System Physiology – Plant

Where is the catalytic domain of cellulose synthase located?

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#Question id: 14952

#Unit 6. System Physiology – Plant

Some are thin areas where the primary wall is not covered by a secondary wall and are populated with plasmodesmata known as

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#Question id: 14947

#Unit 6. System Physiology – Plant

 Nonenzymatic proteins whose exact functions are uncertain. Such proteins may be localized in the walls of specific cell types or more widespread
cell wall protein                                                                   Tissue localization
      A) HRGP (hydroxyproline rich glycoprotein)              i) Xylem, fibers, cortex, root hairs
      B) AGP (arabinogalactan protein) ii) Primary xylem and phloem
     C) PRP (proline-rich protein)                                          iii) Cambium, vascular parenchyma
     D) GRP (glycine-rich protein)                                  iv) Varied cell-specific expression
Which of the following combinations of nonenzymatic protein with its correct location?

TLS Online TPP Program

#Question id: 13555

#Unit 6. System Physiology – Plant

Water Loss Is Also Regulated by the Pathway Resistance