When Pr molecules are exposed to red light, most of them absorb it and are converted to Pfr, but some of the Pfr also absorbs the red light and is converted back to Pr because both Pr and Pfr absorb red light. 

TLS Online TPP Program

#Id: 3639

#Unit 3. Fundamental Processes

Class I AATS are generally monomer and rarely dimer.

TLS Online TPP Program

#Id: 8939

#Unit 2. Cellular Organization

checkpoint factors Bub1-Bub3, BubR1 and Mad2-C Together, these proteins form the mitotic checkpoint complex

TLS Online TPP Program

#Id: 7994

#Unit 10. Ecological Principles

Soil and Water pH Affect the Distribution of Organisms

TLS Online TPP Program

#Id: 8246

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 422

#Unit 2. Cellular Organization

The nucleosome is of 10nm/100A diameter, compacting the DNA about 6-fold over the length of naked DNA. Its first level of organization. 200X3.4A=680A