Estrogens inhibit osteoclastic activity in the bones and therefore stimulate bone growth.

TLS Online TPP Program

#Id: 1367

#Unit 4. Cell Communication and Cell Signaling

All STAT proteins contain: 

An N-terminal DNA-binding domain

An SH2 domain

TLS Online TPP Program

#Id: 3976

#Unit 2. Cellular Organization

A bacterial type II enzyme, called either topoisomerase II or DNA gyrase, can introduce negative supercoils (decrease Lk). It uses the energy of ATP to accomplish this.

To alter DNA linking number, type II topoisomerases cleave both strands of a DNA molecule and pass another duplex through the break.

TLS Online TPP Program

#Id: 5680

#Unit 7. System Physiology – Animal

A unique electrogenic K + pump in the stria vascularis accounts for the fact that the scala media is electrically positive by 85 mV relative to the scala vestibuli

and scala tympani

 

TLS Online TPP Program

#Id: 7733

#Unit 1. Molecules and their Interaction Relevant to Biology

Atoms are made of the same three basic particles: protons, neutrons, and electrons.

TLS Online TPP Program

#Id: 7574

#Unit 5. Developmental Biology

The cells of the oviduct induce the sperm to mature, and mammalian sperm complete their development in the female oviducts. This maturation is called capacitation (the gaining of capacity).