Testosterone, secreted by the Leydig cells located in the interstitium of the testis, is essential for growth and division of the testicular germinal cells.

TLS Online TPP Program

#Id: 9727

#Unit 6. System Physiology – Plant

The active principle in foxglove (Digitalis sp.) is cardinolide digitoxin, a cardiac glycoside that inhibits ATPase activity and can increase myocardial contraction.

TLS Online TPP Program

#Id: 2106

#Unit 8. Inheritance Biology

Prader–Willi syndrome- Deletion on 15 long arm

TLS Online TPP Program

#Id: 6750

#Unit 8. Inheritance Biology

Leucine marker

TLS Online TPP Program

#Id: 2247

#Unit 11. Evolution and Behavior

People who are Δ32 homozygous for the deletion are highly resistant to HIV, while heterozygotes are partly resistant.

TLS Online TPP Program

#Id: 9972

#Unit 4. Cell Communication and Cell Signaling

Kinases CK1 and GSK3,

sequentially phosphorylate β-catenin at multiple serine and threonine residues