Carboniferous- First reptile 

TLS Online TPP Program

#Id: 3412

#Unit 3. Fundamental Processes

SOS response in E. coli:

When DNA is extensively damaged (such as by UV light), DNA replication is halted and the number of single-strand gaps in the DNA increases.

RecA protein binds to this damaged, single-stranded DNA, activating the protein’s co-protease activity.

While bound to DNA, the RecA protein facilitates cleavage and inactivation of the LexA repressor. When the repressor is inactivated, the SOS genes, including RecA, are induced;

TLS Online TPP Program

#Id: 5215

#Unit 7. System Physiology – Animal

Plasminogen is converted to active plasmin when t-PA hydrolyzes the bond between Arg 560 and Val 561. plasmin also activated by urokinase-type plasminogen activator (u-PA).

TLS Online TPP Program

#Id: 7030

#Unit 11. Evolution and Behavior

James Hutton and Charles Lyell – Uniformitarianism Darwin was greatly influenced by Lyell’s teachings, and he adopted uniformitarianism in his thinking about evolution.

TLS Online TPP Program

#Id: 7783

#Unit 2. Cellular Organization

FG-nucleoporins, the central channel of the NPC filled with a fluidlike phase that allows the diffusion of small molecules while excluding unchaperoned hydrophilic proteins larger than 40 kDa.

TLS Online TPP Program

#Id: 6258

#Unit 8. Inheritance Biology

ene Interaction Takes Place When Genes at Multiple Loci Determine a Single Phenotype.