The DNA molecule can be compared to a "twisted ladder" whose rails are and whose rungs are . 1.sugar, phosphate backbone; nitrogenous base pairs
2.adenines; guanines
3.helical; antiparallel

What are the 3 types of artificial cloning

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area