Geckos are able to walk up walls and across ceilings because of the a. little suction cups on their toes. b. sticky adhesive secretions on their feet. c. sticky saliva licked onto the regions where the gecko is about to walk. d. many setae on the gecko's toes that form molecular bonds with the surface. e. none of the choices are correct.

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?