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What is the difference between an oncogene and a tumor suppressor gene?

What are the five histone proteins in eukaryotic cells? Which one is not part of the histone core around which DNA wraps to form chromatin?

What is the difference between a nucleoside and a nucleotide?

For each of the enzymes listed below, list the function of the enzyme and if it is found in prokaryotes, eukaryotes, or both. $$ \begin{array}{|c|l|l|} \hline \text { Enzyme } & \text { Prokaryotes/Eukaryotes/Both } & \text { Function } \\ \hline \text { Helicase } & & \\ \hline \begin{array}{c} \text { Single-stranded DNA-binding } \\ \text { protein } \end{array} & & \\ \hline \text { Primase } & & \\ \hline \text { DNA polymerase III } & & \\ \hline \text { DNA polymerase } \boldsymbol{\alpha} & & \\ \hline \text { DNA polymerase I } & & \\ \hline \end{array} $$ $$ \begin{array}{|c|l|l|} \hline \text { Enzyme } & \text { Prokaryotes/Eukaryotes/Both } & \text { Function } \\ \hline \text { RNase H } & & \\ \hline \text { DNA ligase } & & \\ \hline \text { DNA topoisomerases } & & \\ \hline \end{array} $$

Compare and contrast heterochromatin and euchromatin based on the following characteristics: $$ \begin{array}{|c|c|c|} \hline \text { Characteristic } & \text { Heterochromatin } & \text { Euchromatin } \\ \hline \text { Density of chromatin packing } & & \\ \hline \text { Appearance under light microscopy } & & \\ \hline \text { Transcriptional activity } & & \\ \hline \end{array} $$

What does PCR accomplish for a researcher? What about Southern blotting? \- PCR: \- Southern blotting:

Between the leading strand and lagging strand, which is more prone to mutations? Why?

What are the base-pairing rules according to the Watson-Crick model?

During DNA sequencing, why does the DNA polymer stop growing once a dideoxyribonucleotide is added?

What are the three major structural differences between DNA and RNA? 1. 2. 3