Table of contents

1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

16. Transposable Elements

Discovery of Transposable Elements

Genetics

16. Transposable Elements

Discovery of Transposable Elements

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Multiple Choice

A non-autonomous element is a chromosomal element that can what?

Move without assistance

Move with assistance

Remain in the same place

Lock a transposon in place

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Understand the concept of non-autonomous elements in genetics. These are genetic elements that require assistance from other elements to move within the genome.

Recognize that non-autonomous elements lack the necessary machinery to transpose on their own, unlike autonomous elements which can move independently.

Identify the role of autonomous elements, which provide the necessary proteins or enzymes that facilitate the movement of non-autonomous elements.

Consider examples of non-autonomous elements, such as certain transposons, which rely on transposase enzymes encoded by autonomous elements to transpose.

Conclude that non-autonomous elements move with assistance, as they depend on external factors or elements to facilitate their movement within the genome.

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Related Practice

Open Question

Describe the difference between DNA transposons and retrotransposons.

Open Question

In enhancer trapping experiments, a minimal promoter and a reporter gene are placed adjacent to the end of a transposon so that genomic enhancers adjacent to the insertion site can act to drive expression of the reporter gene. In a modification of this approach, a series of enhancers and a promoter can be placed at the end of a transposon so that transcription is activated from the transposon into adjacent genomic DNA. What types of mutations do you expect to be induced by such a transposon in a mutagenesis experiment?

Open Question

How are flanking direct repeat sequences created by transposition?

Multiple Choice

In Barbara McClintock's study of corn, which of the following kernel phenotypes did she find was due to transposable elements?

Open Question

Describe the difference between DNA transposons and retrotransposons.

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