Problem $5(16$ pts$)$: You would like to make a mouse model to study cancer. Choose a gene that is commonly mutated in cancer from the following: Myc$,$ p$53,$ Rb$,$ Ras, Her$2.$

Is the gene you chose an oncogene or a tumor suppressor gene?

To study this gene, you need to make either a homozygous knockout mouse or a transgenic mouse. Given the gene you chose above, describe EITHER the process of creating a homozygous knockout mouse OR the process of creating a transgenic mouse for your gene.