So homozygous recessive for both traits means we have lowercase G, lowercase G, lowercase N, lowercase N. So when we mate or cross an F one generation female, this individual here with a homozygous recessive male, this individual here, we obtain 2000 offspring. So we have 2000 individual fruit flies. Now, if we assume that the traits, the color trait and this wing type trade are linked, that means they are located on the same chromosome, but we assume no crossing over actually took place. What will be the expected genotype distribution between those 2000 offspring that are produced? So basically, the entire point of Part B is to note that no genetic recombination actually takes place because no Crossing Over takes place. So once again, to determine what the genotypes of the offsprings are we have to find what the gametes that are produced are so we have two types of gametes in this particular case, the question is why?