Nurturing Life Sciences
#Id: 801
On the basis of Transcription, viruses have been classified called as Baltimore Classification
#Id: 8034
#Unit 1. Molecules and their Interaction Relevant to Biology
#Id: 2446
#Unit 3. Fundamental Processes
One consequence of the rotation of DNA is illustrated In the two-domain model for transcription, as RNA polymerase moves with respect to the double helix, it generates positive supercoils (more tightly wound DNA) ahead of it and leaves negative supercoils (partially unwound DNA) behind it. For each helical turn traversed by RNA polymerase, + 1 turn is generated ahead and -1 turn behind.
#Id: 7911
#Unit 2. Cellular Organization
#Id: 431
Core DNA has an invariant length of 146 bp the minimum length of DNA needed to form a stable monomeric nucleosome, and is relatively resistant to digestion by nucleases.
#Id: 1438
#Unit 4. Cell Communication and Cell Signaling