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: 732

#Unit 3. Fundamental Processes

The GATC sites at the origin remain hemimethylated for 13 minutes after replication.

TLS Online TPP Program

#Id: 9896

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 2286

#Unit 3. Fundamental Processes

Transcription that begins at promoters is specific, directed by the s-subunit

TLS Online TPP Program

#Id: 9786

#Unit 6. System Physiology – Plant

Tomato Cf genes is also encodes a R proteins that recognize apoplastic effectors are receptor‐like proteins (RLPs) against the extracellular colonizing fungus Cladosporium fulvum for Avr9

TLS Online TPP Program

#Id: 10462

#Unit 4. Cell Communication and Cell Signaling

MYC gene encodes a basic helix-loop-helix protein

include MAD, MAX, and MNT