The reducing atmosphere and deep sea vent hypotheses of the origin of complex molecules have which in common?
A. water
B. high temperatures
C. electrical discharges
D. high pressure
Ans: A. water
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When fats are broken down to make ATP,
what molecule is formed and in where in aerobic respiration does it enter?
a. acetyl CoA which enters into glycolysis b. acetyl CoA which enters into the Krebs Cycle c. pyruvate which enters into the Krebs Cycle d. PGAL which enters into electron transfer phosphorylation e. PGAL which enters into glycolysis
What does ionizing radiation cause in DNA?
a. faster replication b. the formation of nucleotide dimers c. kinks in the DNA molecule d. breaks in the DNA molecule e. base pair mismatching
What is the relationship between proto-oncogenes and oncogenes?
A) Oncogenes may develop into cancer-causing proto-oncogenes as a result of synergism. B) Oncogenes prevent proto-oncogenes from encoding proteins for cell division. C) Proto-oncogenes may develop into cancer-causing oncogenes as a result of mutations. D) Proto-oncogenes allow oncogenes to encode proteins that prevent cell division.
Which of the following represents the primary factor that determines crop success?
a. soil quality b. crop rotation c. pesticide application d. marketing budget