Type II restriction endonucleases are remarkably stable and induce cleavage either, in most cases, within or immediately outside their recognition sequences.

TLS Online TPP Program

#Id: 6154

#Unit 3. Fundamental Processes

These polymerases are template-dependent, they incorporate nucleotides in a manner that is independent of base pairing.

TLS Online TPP Program

#Id: 970

#Unit 5. Developmental Biology

High β-catenin + Nodal related high + Veg T, Vg1 = Organizer 

TLS Online TPP Program

#Id: 6299

#Unit 3. Fundamental Processes

In the case of the bacterial enzyme bearing s70, this transition, often called isomerization, does not require energy derived from ATP hydrolysis and is instead the result of a spontaneous conformational change in the DNA– enzyme complex to a more energetically favorable form.

TLS Online TPP Program

#Id: 2177

#Unit 11. Evolution and Behavior

Hitchhiking - An allele at one locus spreads by natural selection acting on a second locus that is in linkage disequilibrium with  the first.

TLS Online TPP Program

#Id: 2814

#Unit 13. Methods in Biology

Proteins differ in the amount of hydrophobic amino acids that are present on their surface. This difference can be exploited in salt fractionation but can also be used in a higher resolution method using hydrophobic interaction chromatography (HIC).