Effects of Multiple Crossovers 

TLS Online TPP Program

#Id: 6759

#Unit 3. Fundamental Processes

PNPase a 3’ to 5’ exonucleases in E. coli, are unable to progress through double-stranded regions. Thus, the stem-loop structure at the 3’ end of many bacterial mRNAs protects the mRNA from direct 3’ attack.

TLS Online TPP Program

#Id: 440

#Unit 2. Cellular Organization

Runs of two or more AT base pairs facilitate the bending of DNA, while runs of two or more GC base pairs have the opposite effect. 

 

TLS Online TPP Program

#Id: 8588

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 6329

#Unit 8. Inheritance Biology

XX-XY SEX DETERMINATION

TLS Online TPP Program

#Id: 4844

#Unit 1. Molecules and their Interaction Relevant to Biology