Let's suppose the genotype is in fact this one right over here. So now let's carry out the pun and square for that. So we have X uppercase B, we have X lowercase B, and we have X lowercase by for our sperm cells here. We have X uppercase B. We have x lowercase b, x lowercase b, x lowercase b, x uppercase B-Y-X lowercase b y. Okay, so this actually makes sense because we have a 25 chance that a 25% chance that this individual is formed, which we have right over here.