DNA Replication Lecture

Flashcards covering key concepts from the lecture on DNA replication.

Semi-conservative replication

A type of DNA replication where each new DNA molecule consists of one old strand and one new strand.

Origin of replication

The specific DNA sequence where DNA replication begins.

Helicase

An enzyme that unwinds and separates the strands of double-stranded DNA during replication.

Replication fork

Y-shaped structure formed during DNA replication where the double helix separates.

Leading strand

The DNA strand that is synthesized continuously in the same direction as the replication fork opens.

Lagging strand

The DNA strand that is synthesized discontinuously in short segments (Okazaki fragments) opposite to the direction of the replication fork.

Okazaki fragments

Short segments of DNA created on the lagging strand during DNA replication.

Telomerase

An enzyme that extends telomeres to prevent the loss of genetic information during DNA replication at the ends of chromosomes.

Eukaryotic chromosomes

Linear DNA molecules that have multiple origins of replication.

Replication bubble

Structure formed during DNA replication containing two replication forks.