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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

13. Gene Regulation in Eukaryotes

Epigenetics, Chromatin Modifications, and Regulation

Genetics

13. Gene Regulation in Eukaryotes

Epigenetics, Chromatin Modifications, and Regulation

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Multiple Choice

Which of the following statements about epigenetic changes is correct?

Epigenetic changes involve permanent alterations to the DNA sequence.

Epigenetic changes only occur in prokaryotic organisms.

Epigenetic changes are always inherited through the germline.

Epigenetic changes modify gene expression without changing the DNA sequence.

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Verified step by step guidance

Understand the definition of epigenetic changes: these are modifications that affect gene expression without altering the underlying DNA sequence.

Recognize that epigenetic changes can include mechanisms such as DNA methylation, histone modification, and RNA-associated silencing.

Note that epigenetic changes are not permanent alterations to the DNA sequence itself, so any statement claiming permanent DNA sequence changes is incorrect.

Consider the scope of epigenetic changes: they occur in both prokaryotic and eukaryotic organisms, so limiting them to only prokaryotes is incorrect.

Understand that while some epigenetic changes can be inherited through the germline, many are reversible and not always passed on, so the statement that they are always inherited is incorrect.