What links the two strands in a DNA helix together in the middle?

A. Phosphate groups

B. Sugar rings bonded together

C. Proteins

D. Bases with hydrogen bonds

The correct order of movement of proteins through the golgi apparatus is

Which of the following is true of pathogens? A. Pathogens cause noninfectious diseases. B. Pathogens are not spread from person to person. C. Pathogens are larger organisms such as plants and animals. D.

Which portion of cellular respiration benefits from the cori cycle?

Through which process are food resources, such as plants and animals, renewed? A. The water cycle B. Nitrogen fixation C. Soil formation D. Life cycles

Which type of dating does the law of superposition represent

In the lithification process, compaction is followed by A. cementation B. transformation C. evaporation D. bathification

Which route represents the path taken by the European explorer Christopher Columbus? A) 1 B) 2 C) 3 D) 4

Which gas is the most abundant of the trace gases? A. nitrogen B. oxygen C. argon D. carbon dioxide

Describe the central dogma of molecular biology, briefly describe the processes of transcription and translation.

magine that the animal body produced sperm and eggs with mitosis instead of meiosis. What chromosome number would the autosomes of the third generation have if the first generation had four chromosomes