Spider question

[Egapal]

The paper is for a genetics class where we are learning that in a lot of cases one sex or the other has ,for lack of a better term, stronger genes.

This is just not true. There are some traits that are sex linked and there are some traits that are a result of many different genes. Spider morph is not one of those. It has nothing to do with strength it has to do with the x and y chromosome. Males have and X and a Y and females have two X chromosome. Each chromosome caries genes. If my mom is a carrier for a sex linked trait that means one of her x carries it and the other does not. Now I have a 50, 50 chance of having the trait because I got a y from my father and not an x. My sister has a 0 percent chance of having the trait because she got an x from my father that does not have the gene. The more numbers you collect the closer to 50/50 it will become.