Antithrombin III is a circulating protease inhibitor that binds to serine proteases in the coagulation system, blocking their activity as clotting factors.

TLS Online TPP Program

#Id: 192

#Unit 5. Developmental Biology

At lower concentrations of activin, genes were not activated, and the “default” gene expression instructed the cells to become blood vessels and heart.

TLS Online TPP Program

#Id: 5334

#Unit 7. System Physiology – Animal

Reduced Ventricular Filling (Diastasis)

Changes in heart rate alter the time available for Diastasis.

TLS Online TPP Program

#Id: 5048

#Unit 3. Fundamental Processes

An unmethylated CG site remains unmethylated after replication.

TLS Online TPP Program

#Id: 6426

#Unit 8. Inheritance Biology

Y-Linked Traits

Y-linked traits appear only in males and are passed from a father to all his sons.

Does not skip generations. Example – Hypertrichosis, Webbed toes

TLS Online TPP Program

#Id: 2310

#Unit 3. Fundamental Processes

The transition from the closed to the open complex involves structural changes in the enzyme and the opening of the DNA double helix to reveal the template and nontemplate strands. This “melting” occurs between positions –11 and +2, with respect to the transcription start site.