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TLS Online TPP Program

#Id: 3966


In E.coli, Protein HU is a dimer that condenses DNA, possibly wrapping it into a beadlike structure.

#Unit 2. Cellular Organization #Structure of chromatin and chromosomes #Part B Pointers
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TLS Online TPP Program

#Id: 2360

#Unit 5. Developmental Biology

Second possible mechanisms for neoblast specification during regeneration:
Multipotent progenitor cells are positioned throughout the planarian with their lineages specified based on their position. These divide and produce postmitotic blastema cells that differentiate into their specified fates.

 

TLS Online TPP Program

#Id: 2361

#Unit 5. Developmental Biology

The gene smedwi-1 is expressed by all neoblasts and the most common marker for their identification across planarian species.

TLS Online TPP Program

#Id: 2362

#Unit 5. Developmental Biology

Zeta and Sigma neoblasts are morphologically indistinguishable, but they express different gene regulatory networks.


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#Id: 2363

#Unit 5. Developmental Biology

Sigma neoblasts expresses soxP-2

TLS Online TPP Program

#Id: 2364

#Unit 5. Developmental Biology

Zeta neoblast expresses zfp-1 

TLS Online TPP Program

#Id: 2365

#Unit 5. Developmental Biology

Sigma neoblasts are highly proliferative and are the only stem cells directly responsive to injury.


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