Define the L1 element.
Describe the process of trasposition of the L1.
What is reverse transcriptase?
What is the Alu sequence?
Is a human retrotransposon that is referred to as LINE-1, a long interspersed nuclear element that is transcribed into RNA by a host cell's RNA polymerase.
- 1. Using RNA polymerase, the retrotrasnposon is transcribed into RNA.
- 2. Reverse transcriptase uses the RNA as a template to make a double stranded DNA copy.
- 3. That DNA copy can reintegrate into another site in the target DNA and do this process again.
A weird enzyme that uses RNA as a template to make a double stranded DNA molecule encoded by the L1 element itself.
It is a retrotransposon that does not encode for its own reverse transcriptase and thus depend on enzymes already present in the cell to help them move.