Transposable Elements
Über den Vortrag
Der Vortrag „Transposable Elements “ von Georgina Cornwall, PhD ist Bestandteil des Kurses „Genomics“.
Quiz zum Vortrag
Which of the following is TRUE of transposable elements? Select all that apply.
- Long interspersed retrotransposable elements (LINEs) can transpose themselves.
- Transposable elements make up 45% of the human genome.
- Transposable elements have little effect on gene expression.
- Short interspersed retrotransposable elements (SINEs) may interrupt gene expression.
- SINEs are usually longer than LINEs.
Which of the following is NOT correct?
- Transposons are highly conserved regions of noncoding DNA that provide structural support to centromeres.
- Retrotransposons move by a “copy and paste” mechanism and depend on reverse transcriptase activity.
- LINEs can transpose themselves and may facilitate the movement of SINEs.
- SINEs are embedded in LINEs and often interrupt other genes.
- LTRs code reverse transcriptase to transcribe themselves.
Which of the following best describes a dead transposon?
- A transposable element that no longer has the machinery to move
- A piece of DNA that is inserted into a gene to render the gene useless
- A piece of DNA between a start and a stop codon
- A piece of DNA that is expressed in the mature mRNA molecule
- A piece of DNA that is removed during RNA splicing
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Dozent des Vortrages Transposable Elements
Georgina Cornwall, PhD
Dr. Georgina Cornwall is a Biology Instructor and currently works as an Instructional Designer in the private sector, developing interactive online training materials.
She obtained her PhD in Environmental, Population, and Organismic Biology at the University of Colorado, USA, in 2000, and has since taught a broad array of biology courses at various US universities.
She is an active promoter of hybrid/online teaching formats and interactive courses, and has received several awards for her engaging and innovative course design; e.g., she was named Adjunct Faculty of the Year at Colorado Mountain College in Aspen twice.
Within Lecturio, Dr. Cornwall teaches courses on Biology & Genetics.
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