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

10. Transcription

RNA Modification and Processing

Genetics

10. Transcription

RNA Modification and Processing

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Multiple Choice

When does mRNA processing occur in eukaryotic cells?

During DNA replication

Before transcription begins

After translation is complete

After transcription but before translation

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Verified step by step guidance

Understand the central dogma of molecular biology, which describes the flow of genetic information: DNA is transcribed into mRNA, and mRNA is then translated into protein.

Recognize that mRNA processing is a set of modifications that occur to the primary RNA transcript (pre-mRNA) in eukaryotic cells to produce mature mRNA.

Identify the key stages of gene expression: transcription (DNA to RNA), mRNA processing (modification of pre-mRNA), and translation (mRNA to protein).

Note that mRNA processing includes adding a 5' cap, splicing out introns, and adding a poly-A tail at the 3' end, all of which happen after transcription but before the mRNA leaves the nucleus for translation.

Conclude that mRNA processing occurs after transcription is complete but before translation begins, ensuring the mRNA is properly prepared for protein synthesis.