Anew kind of tulip is produced that develops only purple or pink flowers. assume that flower color is controlled by a single-gene locus, and that the purple allele (c) is dominant to the pink allele (c). a random sample of 1000 tulips from a large cultivated field yields 847 purple flowers and 153 pink flowers. determine the frequency of the purple and pink alleles in this field population.

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation