Amother and father have a dominant gene for dark brown eyes. the child is born with light brown eyes that changed to hazel. there is no history of hazel eyes or light color eyes in the mother or father’s family. based on your knowledge of science, how can you explain why the child has hazel eyes?

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different