Wolff –Chaikoff effect large doses of iodide act directly on the thyroid to produce a mild and transient inhibition of organic binding of iodide and hence of hormone synthesis.

TLS Online TPP Program

#Id: 1385

#Unit 4. Cell Communication and Cell Signaling

There are three classes of myosins, are present in many eukaryotes: 

Myosin I- single head domain

Myosin II- two heads and assembles into bipolar filaments

Myosin V- two heads but does not assemble into filaments

TLS Online TPP Program

#Id: 8266

#Unit 1. Molecules and their Interaction Relevant to Biology

Potential energy of an induced dipole-induced dipole interaction depends on first ionization energy of atom creating permanent dipole.

TLS Online TPP Program

#Id: 2585

#Unit 7. System Physiology – Animal

Function of the two exchangers is to transport NaCl from the lumen into the cell:

Na+-H+ exchanger

Cl−-formate− anion exchanger

TLS Online TPP Program

#Id: 6807

#Unit 3. Fundamental Processes

The precursor RNA for the siRNA pathway is a longer dsRNA. As a consequence of this different initial substrate, Drosha is not needed for the generation of siRNAs. Cleavage by Dicer is still required, however, and again generates a suitable 21- to 22-nucleotide RNA for incorporation into RISC.

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#Id: 6635

#Unit 8. Inheritance Biology