A scientist found that a particular mutation resulted in the change of only one amino acid in the protein coded by the gene. Would this be a point mutation or frameshift mutation? Explain your answer.

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million