Reciprocity

When one individual provides a fitness benefit to another, as long as the second individual is likely to return the favor later.

TLS Online TPP Program

#Id: 9988

#Unit 4. Cell Communication and Cell Signaling

Frizzled paired with Ror and Ror receptor complex phosphorylates Disheveled

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#Id: 549

#Unit 2. Cellular Organization

Mycoplasma’s plasma membrane contains sterols which protect them from lysis.

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#Id: 2592

#Unit 13. Methods in Biology

The logic for hotstart PCR is as follows, most DNA samples used as template will have some single-stranded DNA. 

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#Id: 7172

#Unit 5. Developmental Biology

Siamois and Twin interact in the organizer with the Smad2 transcription factor activated by vegetal TGF-β family members (Nodal-related proteins, Vg1, activin)

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#Id: 6030

#Unit 3. Fundamental Processes

The exonuclease FEN1 removes the RNA primers of Okazaki fragments. The complex of DNA polymerase d and FEN1 carries out the same type of nick translation that E. coli DNA polymerase I carries out during Okazaki fragment maturation