Im just curious, if anyone has an answer for this-so I just spent the last 30 minutes picking at my face kind of and this little black Pebble came out of my face, I know it's not a black head, does anyone know what it is if so please tell me?!​

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?