Nucleosome DNA wraps around the histone protein 1.65 times, so create a writhe of –1.65 and so DLk should be -1.65. But when the change in linking number associated with each nucleosome was measured, the number was lower than this, approximately –1.2 for each nucleosome added. This discrepancy is referred to as the 

TLS Online TPP Program

#Question id: 926

#Unit 1. Molecules and their Interaction Relevant to Biology

The carbon atoms from a fatty acid with an odd number of carbons will enter the citric acid cycle as acetyl-CoA and:

TLS Online TPP Program

#Question id: 7144

#Unit 5. Developmental Biology

Heart development begins as

TLS Online TPP Program

#Question id: 4018

#Unit 3. Fundamental Processes

How does binding of the lac repressor to the lac operator block transcription initiation?

TLS Online TPP Program

#Question id: 2198

#Unit 2. Cellular Organization

The cell in number (15) above would be in an environment that was:

TLS Online TPP Program

#Question id: 2840

#Unit 2. Cellular Organization

An experimental setup provided the assay for identifying factors that facilitate transcription in the presence of chromatin. A factor called FACT (facilitates chromatin transcription) functions as