X-linked characteristic Characteristic determined by a gene or genes on the X chromosome.  Y-linked characteristic  Characteristic determined by a gene or genes on the Y chromosome. The locus for the blue pigment is found on chromosome 7, and those for the green and the red pigments lie close together on the X chromosome.

TLS Online TPP Program

#Id: 1382

#Unit 4. Cell Communication and Cell Signaling

Profilin enhances the exchange of ADP for ATP on G-actin. Cofilin enhances the rate of loss of ADP-actin from the filament (−) end. Thymosin-β4, binds to ATP–G-actin in such a way that it inhibits addition of the actin subunit to either end of the filament.

TLS Online TPP Program

#Id: 1584

#Unit 5. Developmental Biology

Primitive Streak; homologous to amphibian blastopore lip

TLS Online TPP Program

#Id: 912

#Unit 13. Methods in Biology

The MTT assay can measure cell proliferation or cell death.

TLS Online TPP Program

#Id: 3355

#Unit 6. System Physiology – Plant

If 10 protons are pumped out per NADH and 4 must flow in to produce 1 ATP, the proton-based P/O ratio is 2.5 for NADH as the electron donor and 1.5 (6/4) for succinate.

TLS Online TPP Program

#Id: 7272

#Unit 6. System Physiology – Plant