TLS Online TPP Program

#Id: 2122

#Unit 8. Inheritance Biology

Inversions that do not include the centromere, are termed paracentric inversions

 

TLS Online TPP Program

#Id: 6301

#Unit 3. Fundamental Processes

The closed complex is converted into an open complex of 1.3 turns of the double helix in a series of steps by first “melting” a short region of DNA around the -10 region, giving an unstable intermediate open complex within the sequence bound by the enzyme.  Two bases in the non-template strand of the –10 element (A11 and T7) flip out from their base-stacking interactions and instead insert into pockets within the s protein where they make more favorable interactions. By stabilizing the single-stranded form of the –10 element, these interactions drive melting of the promoter region.

TLS Online TPP Program

#Id: 7241

#Unit 5. Developmental Biology

Formation of mature B-cell

TLS Online TPP Program

#Id: 8691

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 9270

#Unit 6. System Physiology – Plant

MoFe protein 

2 pairs of identical subunits (tetramer, nif D & nif K)

A total of MW 180 ~ 235kD

Each subunit has 2 Mo-Fe-S clusters.

Both Fe proteins and MoFe proteins are sensitive to O2.