OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Polymerase action site
|
|
|
Replication fork
|
|
|
Replication Origin
|
|
|
In the front
|
Detailed explanation-1: -DNA replication begins at a single origin of replication, and the two replication forks assembled there proceed (at approximately 500–1000 nucleotides per second) in opposite directions until they meet up roughly halfway around the chromosome (Figure 5-30).
Detailed explanation-2: -The Replication Fork and the Replisome. The site of ongoing DNA synthesis during DNA replication is called replication fork. It comprises the two parental DNA strands that are separated in order to allow copying of each single strand by the DNA polymerases.
Detailed explanation-3: -origin of replication. An origin of replication is a sequence of DNA at which replication is initiated on a chromosome, plasmid or virus. For small DNAs, including bacterial plasmids and small viruses, a single origin is sufficient.