Hershey and Chase's experiment with radioactively labeled viruses made use of the fact that protein,
but not DNA, contains
A. phosphorus.
B. iron.
C. sulfur.
D. nitrogen.
E. potassium.
C
You might also like to view...
Hereditarianism is the idea that all human traits are ____
a. partly influenced by environment b. traceable to our earliest ancestors c. influenced equally by genes and environment d. determined only by genes e. immutable from generation to generation
A flower with petals, sepals, stamens, and one carpel is ____
a. perfect and incomplete b. imperfect and complete c. imperfect and incomplete d. perfect and complete e. sterile
A national planner is aware that the income tax revenues will fall in 30 years, so it would be best to increase the money coming into the budget at that time. Which of the following would be the most productive option?
A) Sponsor more research into late-onset Alzheimer's disease research. B) Promote men's health programs. C) Increase childhood vaccination programs. D) Build better highways.
In India, the cattle disease rinderpest caused only mild illness, but in Africa the same disease killed over 80% of the cattle across the continent. What is the best explanation for the difference?
A. Faster spread of the disease in Africa due to wildebeests and buffalo B. Genetic resistance in the Indian cattle due to prior exposure C. Different temperatures in Africa and India D. Better veterinary care in India