TLS Online TPP Program
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TLS Online TPP Program
#Question id: 16953
#Unit 4. Cell Communication and Cell Signaling
The ability of any stem cell to self-renew and differentiate depends on the structural organization and cellular function of specialized anatomic microenvironments known as stem cell niches. These sequestered regions are typically populated by a supportive network of stromal cells. Stem cell niche stromal cells express soluble and membrane-bound proteins that regulate cell survival, proliferation, differentiation, and trafficking. Which statements is true about HSCs?
TLS Online TPP Program
#Question id: 2776
#Unit 2. Cellular Organization
There are five major types of histone proteins, but only four of them are considered as core histones. Which one of the following is NOT considered a core histone protein?
TLS Online TPP Program
#Question id: 31332
#Unit 5. Developmental Biology
When the epithelial cells and mesenchymal cells placed together, the same epithelium develops different structures according to the region from which the mesenchyme was taken, phenomena known as:
TLS Online TPP Program
#Question id: 1002
#Unit 1. Molecules and their Interaction Relevant to Biology
What would be the product of the transamination of the structure shown below? (The unionized forms are shown.)
TLS Online TPP Program
#Question id: 32273
#Unit 2. Cellular Organization
Which of the following membrane bound ER chaperone proteins require Ca2+ for their activities?
a. Calnexin
b. Calreticulin
c. E3 ubiquitin ligase
d. Bip