Free Flashcard From Biology - Chapter 16
Question:
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). These two classes of DNA probably represent
A) leading strands and Okazaki fragments.
B) lagging strands and Okazaki fragments.
C) Okazaki fragments and RNA primers.
D) leading strands and RNA primers.
E) RNA primers and mitochondrial DNA.
Answer:
A) leading strands and Okazaki fragments.