Sigma factor Region 2.3 is responsible for melting the DNA at -10 element.

TLS Online TPP Program

#Id: 2027

#Unit 8. Inheritance Biology

Episome Plasmid capable of integrating into a bacterial chromosome.

TLS Online TPP Program

#Id: 8163

#Unit 2. Cellular Organization

Vesicles coated with AP1 and clathrin bind to  proteins containing a Tyr-X-X-Φ sequence

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#Id: 2591

#Unit 13. Methods in Biology

Touchdown  PCR is initiated at very high annealing temperatures, which allow only perfectly matched primer-template DNA hybrids to form and support amplification. The annealing temperature is dropped in a stepwise fashion with each cycle of PCR. 

TLS Online TPP Program

#Id: 5985

#Unit 10. Ecological Principles

Strength of mortality factors varies with plant productivity, the rate of production of plant biomass. For very simple systems, where few plants exist, not enough plant material is available to support herbivores, and plants must be resource limited, that is, limited by competition.

 

  

TLS Online TPP Program

#Id: 4958

#Unit 6. System Physiology – Plant

Phytochrome responses can be distinguished by the amount of light required to induce them. The amount of light is referred to as the fluence, which is defined as the number of photons impinging on a unit surface area.