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
- 19. Cancer Genetics29m
- 20. Quantitative Genetics1h 26m
- 21. Population Genetics50m
- 22. Evolutionary Genetics29m
10. Transcription
Transcription in Eukaryotes
2:53 minutes
Problem 11
Textbook Question
Textbook QuestionDescribe the difference between introns and exons.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Introns
Introns are non-coding sequences of DNA that are found within a gene. They are transcribed into precursor mRNA but are removed during the RNA splicing process before translation into proteins. Introns play roles in gene regulation and alternative splicing, which can lead to the production of multiple protein variants from a single gene.
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mRNA Processing
Exons
Exons are the coding sequences of a gene that remain in the mature mRNA after splicing. They are essential for encoding the amino acid sequence of proteins. The arrangement and combination of exons can influence the final protein product, and their presence is crucial for the proper expression of genetic information.
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mRNA Processing
RNA Splicing
RNA splicing is the process by which introns are removed and exons are joined together in precursor mRNA to form mature mRNA. This process is vital for the correct expression of genes, as it ensures that only the coding regions are translated into proteins. Splicing can also lead to alternative splicing, allowing for the generation of diverse protein isoforms from a single gene.
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