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TLS Online TPP Program

#Id: 3100

It has an origin at which replication is initiated. It may also have a terminus at which replication stops.

#Unit 3. Fundamental Processes #Unit of replication and enzymes involved #Part B Pointers
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TLS Online TPP Program

#Id: 5480

#Unit 7. System Physiology – Animal

ACh is formed from acetyl coenzyme A (acetyl CoA) and choline by the action of the enzyme choline acetyltransferase
TLS Online TPP Program

#Id: 187

#Unit 5. Developmental Biology

In the frog (Xenopus laevis)
A gradient of the paracrine factor activin (a morphogen), causes concentration-dependent expression differences of two genes in unspecified cells.
TLS Online TPP Program

#Id: 722

#Unit 3. Fundamental Processes

Each eukaryotic chromosome contains a large number of replicons spaced unevenly throughout the chromosomes.
TLS Online TPP Program

#Id: 5282

#Unit 7. System Physiology – Animal

Negative chronotropic effects are decreases in heart rate.
TLS Online TPP Program

#Id: 7159

#Unit 5. Developmental Biology

Amphibian Gastrulation