The _______ was labeled using the radioisotope 32P in the Hershey-Chase experiments
A. RNA
B. DNA
C. protein
D. carbohydrates
B
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A high school student in Nepal is accepted—and eventually attends—college in the United States. His diet goes from one that is rich in vegetables and grains to one that primarily consists of meat and sugars
What will happen to the bacterial composition of his intestines? A. There will be more Firmicutes inhabiting his intestinal tract. B. There will be more Bacteroidetes inhabiting his intestinal tract. C. Nothing will happen; there is no relationship between bacteria in the intestines and diet. D. Bacteria will no longer inhabit his intestines.
A mutation arises in an individual that can decrease that individual's Darwininan fitness. This means that this individuals
A. stamina will increase. B. ability to utilize food will remain the same. C. ability to produce offspring and contribute to the gene pool of the next generation will decrease. D. probability that it will face elimination by natural selection will increase. E. ability to produce offspring and contribute to the gene pool of the next generation will decrease and probability that it will face elimination by natural selection will increase.
The Krebs cycle releases
A. carbon. B. ADP. C. hydrogen. D. phosphate.
Where does DNA replication occur?
A. Ribosomes B. Rough ER C. Nucleus D. Golgi