What process has been used for centuries by farmers to produce the breeds that most suit their needs? a. gene therapy b. genetic engineering c. creating mutations d. selective breeding

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

Which characteristics are typical of a human population in the postindustrial stage?

Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow