TLS Online TPP Program

#Id: 999

#Unit 5. Developmental Biology

The homologue of TGF-β in Drosophila is Dpp.

TLS Online TPP Program

#Id: 6331

#Unit 8. Inheritance Biology

ZZ-ZW SEX DETERMINATION

The female is heterogametic, and the male is homogametic. The ZZ-ZW system is found in birds, some reptiles, butterflies, some amphibians, and some fishes. 

TLS Online TPP Program

#Id: 10082

#Unit 4. Cell Communication and Cell Signaling

The binding of integrins to their ligands depends on extracellular divalent cations(Ca+2 & Mg+2)

TLS Online TPP Program

#Id: 8794

#Unit 10. Ecological Principles

COMMUNITY ZONATION - One of the most noticeable features of communities is that the species composition of the community changes as one moves across the landscape. 

With the change in environmental conditions, some species become better able to survive and compete. 

TLS Online TPP Program

#Id: 8795

#Unit 10. Ecological Principles