Scientists can compare the relationships between all modern species by examining a gene that performs a similar function in species from all kingdoms. What does this one gene encode?
A) Taq polymerase
B) ribosomal RNA
C) enzymes needed for photosynthesis
D) restriction enzymes
B
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The private attempt to sequence the human genome, coordinated by Celera Corporation, used a method called ____________________ cloning
Fill in the blank(s) with correct word
Which of the following is NOT true about peat
bogs?
a. they are found throughout the world at high latitudes b. they are harvested and used in planting mixtures c. they are harvested and used as fuels d. they are anaerobic e. they are highly alkaline
Figure 40.2
In the above illustration of fluid regulation in a planarian, the letter "A" represents which of the following?
A. Nucleus of the flame cell B. Small capillaries that allow water to freely diffuse into the planarian C. Sexual reproductive organ D. Cilia to draw fluid into the planarian E. Funnel to collect fluid
Aseptic packaging utilizes which of the following to sterilize laminated paper or plastic prior to filling with food?
A) hot HCl solution B) gamma radiation C) hot hydrogen peroxide solution D) X rays E) autoclave