Which of the following would be the last step in the process of dna fingerprinting?

a dna sample is obtained.
b. restriction fragments are separated.
c. restriction enzymes are used to cut dna into fragments.
d. dna fragments containing repeats are labeled with radioactive probes.

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food