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TLS Online TPP Program

#Id: 1723

CD23a is found on activated B cells, whereas CD23b is induced on various cell types by the cytokine IL-4.

#Unit 4. Cell Communication and Cell Signaling #Hypersensitivity and autoimmunity #Part B Pointers
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TLS Online TPP Program

#Id: 6948

#Unit 8. Inheritance Biology

In paracentric inversion form,
Acentric chromatid - Chromatid that lacks a centromere
Dicentric chromatid - Chromatid that has two centromere
TLS Online TPP Program

#Id: 2980

#Unit 3. Fundamental Processes

It does not exist as an independent unit (e.g., analogous to the ribosome), but assembles de novo at the origin for each replication cycle.
TLS Online TPP Program

#Id: 9168

#Unit 11. Evolution and Behavior
TLS Online TPP Program

#Id: 676

#Unit 3. Fundamental Processes

The telomerase is a large ribonucleoprotein that consists of a templating RNA which is encoded by TLC1 in yeast, hTERC in humans.
TLS Online TPP Program

#Id: 9206

#Unit 11. Evolution and Behavior

Genetic drift 
Genetic drift is an evolutionary force, in which allelic frequency change over generation Just by chance (sampling error). 
The deviations from the expected ratios are random, the direction of change is unpredictable.