Foregut endoderm and cardiac mesoderm cause the synthesis of the Otx2 transcription factor in the head ectoderm during the late gastrula stage

TLS Online TPP Program

#Id: 4498

#Unit 13. Methods in Biology

To record limb lead III, the negative terminal of the electrocardiograph is connected to the left arm and the positive terminal is connected to the left leg.

TLS Online TPP Program

#Id: 6635

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 5068

#Unit 3. Fundamental Processes

dat locus is regulatory

In particular, a locus called dat has a large concentration of DnaA-binding sites. It binds about 80 more DnaA molecules than the origin.

Deletion of dat causes initiation to occur more frequently. This significantly increases the amount of DnaA available to the origin.

TLS Online TPP Program

#Id: 2288

#Unit 3. Fundamental Processes

The effect of temperature on the dissociation of the polymerase–T7 DNA complex. 

TLS Online TPP Program

#Id: 7325

#Unit 11. Evolution and Behavior

The Hardy-Weinberg Law