#Question id: 3832
#Unit 3. Fundamental Processes
You briefly expose bacteria undergoing DNA replication to radioactively labeled nucleotides. When you centrifuge the DNA isolated from the bacteria, the DNA separates into two classes. One class of labeled DNA includes very large molecules (thousands or even millions of nucleotides long), and the other includes short stretches of DNA (several hundred to a few thousand nucleotides in length). Which two classes of DNA do these different samples represent?
#Question id: 4935
#Unit 11. Evolution and Behavior
Which gas was least abundant in Earthʹs early atmosphere, prior to 2 billion years ago?
#Question id: 5617
#Unit 5. Developmental Biology
In sea urchins and mammals, the rise in Ca2+ concentration responsible for the cortical granule reaction is due to
#Question id: 3726
#Unit 3. Fundamental Processes
What is a reasonable length for an RNA primer in E. coli?
#Question id: 11759
#Unit 9. Diversity of Life Forms
Thread-like pseudopods that can perform phagocytosis are generally characteristic of which group?