DNA REPLICATIO1 - process is catalyzed by the enzyme DNA...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
DNA REPLICATION   Before any type of cell division, the DNA must be copied (replicated) so that a complete set can  be passed on to the daughter cells. This is true whether it is a eukaryotic cell dividing by mitosis  or a prokaryotic cell dividing by binary fission. The plan is that the two original  strands (parent  strands) of DNA will unwind and separate, and a new complementary strand to each of them will  be synthesized by matching free nucleotides in the cytoplasm up to each parent strand. In  bacteria, only a small area of the original chromosome, known as the replication fork, will be  opened up and separated at once, but eventually the entire chromosome will be replicated. The 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: process is catalyzed by the enzyme DNA polymerase. Since each copy of the chromosome will now contain one original parent strand and one newly synthesized strand, the process is called semiconservative replication. This is a complicated process. First, we must take another look at the structure of the two complementary strands of DNA. The sugars of one strand are upside down compared to the sugars of the other strand. Each carbon in a sugar molecule is numbered, 1 -- 5. This is the structure of one sugar molecule: This is the way the sugars are arranged in a complementary section of DNA....
View Full Document

Page1 / 2

DNA REPLICATIO1 - process is catalyzed by the enzyme DNA...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online