TLS Online TPP Program

#Id: 7160

#Unit 5. Developmental Biology

Epiboly: The thinning and spreading of the animal cap cells over the vegetal hemisphere, powered by proliferation and radial intercalation. is critical for activating the genes that specify cells to be endoderm. Thus, the fate of the vegetal cells is to become endodermal

TLS Online TPP Program

#Id: 2826

#Unit 13. Methods in Biology

Affinity chromatography exploits the unique property of extremely specific biological interactions to achieve separation and purification

TLS Online TPP Program

#Id: 899

#Unit 13. Methods in Biology

T4 DNA ligase Links 5-phosphate and 3-hydroxyl ends via phosphodiester bond.

TLS Online TPP Program

#Id: 7595

#Unit 5. Developmental Biology

Chemotactic compounds hormone Progesterone,  made by the cumulus cells, might trigger the release of Protein kinase A from the sperm cell membrane, & allowing it to activate the sperm-specific cation CatSper channels would facilitate the transfer of calcium ions into the sperm, where they would cause exocytosis of the acrosome

TLS Online TPP Program

#Id: 2146

#Unit 9. Diversity of Life Forms

Homoplasy is similarity arrived at via independent evolution.