In shorthorn cattle, coat color may be red, white, or roan. Roan is an intermediate phenotype expressed as a mixture of red and white hairs. The following data were obtained from various crosses: How is coat color inherited? What are the genotypes of parents and offspring for each cross?

Video transcript

Hi everyone. Let's take a look at this practice problem together. The process in which several genes work together to influence particular characteristics is called. So when several genes work together to influence characteristics, this is known as what this is what we're looking for in our answer. So let's take a look at our options. We have a gene mutation. So a gene mutation is a change in a jeans D. N. A. Not the process of several genes working together so we can eliminate option a next let's look at see gene modification now modification meaning to modify. So a gene modification would be changing a genes genetic material. So this option is also incorrect and will eliminate option C. Next we'll look at de gene therapy and this is a type of therapy that modifies a gene in order to treat or cure a disease. And this does not explain the process of several genes working together to influence characteristics. So D. Is also incorrect. Now let's look at B. Gene interaction. So this is the process of several genes working together to influence particular characteristics. Now it's important to note that the genes are it's not that the genes are additive to produce characteristics but that each gene works on a cellular level individually to influence characteristics. So an example of this is an insect's eye where different genes individually determine the shape, color and size but they all work together to produce what the overall I looks like. So our answer is B. Gene interaction is the process in which several genes work together to influence particular characteristics. Alright everyone. I hope you found this helpful, and I'll see you for the next practice problem.