By 1969 SDS-PAGE of RNA polymerase from E. coli had shown several subunits

1.2 very large subunits are b (150 kD) and b’ (160 kD)

2. Sigma (s) at 70 kD

3. Alpha (a) at 40 kD – 2 copies present in holoenzyme

4. Omega (w) at 10 kD 

TLS Online TPP Program

#Id: 10167

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 8679

#Unit 1. Molecules and their Interaction Relevant to Biology

The predominant hexokinase isozyme of liver is hexokinase IV (glucokinase) and it is GLUT2 dependent

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#Id: 2169

#Unit 11. Evolution and Behavior

Average fitness

In a species, only 1 of every 1000 seeds survives to reproductive age, and that those that survive produce an average of 3000 seeds.

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#Id: 8253

#Unit 1. Molecules and their Interaction Relevant to Biology

Spontaneous (or instantaneous) dipoles

When groups of electrons move to one end of the atom, it creates a dipole. 

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#Id: 10075

#Unit 4. Cell Communication and Cell Signaling

In cultured cells, C → Y mutation in the EC5 domain of CDHR3 increases the cell-surface expression of CDHR3 and the binding and replication of RV-C.