Topological states of covalently closed, circular (ccc) DNA. 

TLS Online TPP Program

#Id: 6008

#Unit 3. Fundamental Processes

At the end of the cell cycle, ORC is bound to A–B1 elements of the origin. There is a change during G1 that results from the binding of Cdc6 and Cdt1 proteins to the ORC. 

In yeast, Cdc6 is a highly unstable protein, with a half-life of 5 minutes. It is synthesized during G1 and typically binds to ORC between the exit from mitosis and late G1. Its rapid degradation means that no protein is available later in the cycle.

TLS Online TPP Program

#Id: 2245

#Unit 11. Evolution and Behavior

Deletion plays a key role in gene trafficking.which is the movement of genes to new sites in the genome.

TLS Online TPP Program

#Id: 1251

#Unit 7. System Physiology – Animal

ADH and oxytocin synthesized in cell bodies of hypothalamic neurons and secreted from nerve terminals in the posterior pituitary.

TLS Online TPP Program

#Id: 4844

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 7535

#Unit 6. System Physiology – Plant

GA levels in plants are correlated with stem length, internode elongation and seed germination. Play role in seed germination, transition to flowering, and pollen development.