Part 1: crossing beak color and tail-feather length cross a yyll (heterozygous parent with dominant traits) with yyll (homozygous parent with recessive traits). look at the number of phenotypes of the f1 generation: yyll: 400 yyll: 100 yyll: 100 yyll: 400 how far apart are y and l? give your answer in map units. question 2 options: 20 map units 80 map units 100 map units 400 map units