What is the site where replication of a DNA molecule begins called?

Study for the DNA Structure, Replication, Transcription and Translation Test with flashcards and multiple choice questions. Each question offers hints and explanations. Prepare thoroughly and excel in your exam!

Multiple Choice

What is the site where replication of a DNA molecule begins called?

Explanation:
Replication begins at a specific site on the chromosome called the origin of replication. This location is where initiator proteins bind, unwind the DNA, and recruit the replication machinery to form a replication bubble with two forks, enabling bidirectional DNA synthesis. In bacteria there is usually a single origin, while eukaryotic chromosomes have multiple origins to coordinate replication across the genome. Origins are often AT-rich to facilitate strand separation during opening. The other terms refer to different roles: a promoter starts transcription, a terminus marks where replication ends, and a centromere is involved in chromosome segregation during cell division.

Replication begins at a specific site on the chromosome called the origin of replication. This location is where initiator proteins bind, unwind the DNA, and recruit the replication machinery to form a replication bubble with two forks, enabling bidirectional DNA synthesis. In bacteria there is usually a single origin, while eukaryotic chromosomes have multiple origins to coordinate replication across the genome. Origins are often AT-rich to facilitate strand separation during opening. The other terms refer to different roles: a promoter starts transcription, a terminus marks where replication ends, and a centromere is involved in chromosome segregation during cell division.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy