Well, the nucleus of a cell in interphase tends to have less condensed chromosomes; the nucleus of a cell in mitosis (in particular during Prophase) has more condensed chromosomes. In other phases of mitosis, the nucleus is non-existent, except for telophase.
In other words, in interphase, you have euchromatin (less condensed chromatin), and in mitosis, you have heterochromatin (more condensed chromatin).
The effect TFIIF has on the binding of pol II to general DNA sequences is it increases the affinity of the factors for DNA
, increases the number of protein-DNA contacts and changes the recognition binding site.
Biogeography is the study of geographical distribution of fossils, various species (plants and animals) and ecosystems throughout geological time and space
