MCB 150 Study Guide - Midterm Guide: Interphase, Exonuclease, Phosphodiester Bond

• School: University of Illinois
• Department: Molecular and Cell Biology
• Course: MCB 150
• Professor: Brad Mehrtens

Document Summary

The entire chromosome is not the nor. Only a small section would be an nor. If this was a zoomed in part of the chromosome, then it would be correct. There are a lot of positively charged amino acids. This means nls and mitochondrial transit sequences. If he says that the sequence is not at the beginning, this changes things. At the mitochondria, the sequence gets chopped off, so it cannot be chopped if it"s in the middle. Since it"s at the middle, you know that it needs to be an nls. Even interphase chromosomes occupy their own territory. Hard because can"t really see interphase chromosomes. This means that they are thick enough to see with light microscopy. These are the exceptions, so no real support. Exonuclease = remove nucleotides (break phosphodiester bond) Break the bond at the end of a nucleic acid molecule. 3 5 = remove base you just put in.