(Punnet squares) A white cow is crossed with a roan bull. Use the alleles Hr and Hw. What is the genotypic ratio produced? What is the phenotypic ratio produced?

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.