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

19. Cancer Genetics

Overview of Cancer

Genetics

19. Cancer Genetics

Overview of Cancer

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Multiple Choice

Which of the following statements about cancer is false?

Cancer stem cells exist to continue growing the tumor for some cancer types

Cancers are clona

Cancer is triggered only through external mutagens

Cancer can be caused by epigenetic changes

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Verified step by step guidance

Understand the nature of cancer: Cancer is a complex disease characterized by uncontrolled cell growth. It can be influenced by various factors, including genetic mutations, environmental factors, and epigenetic changes.

Explore the concept of cancer stem cells: Cancer stem cells are a subset of cells within a tumor that possess the ability to self-renew and drive tumor growth. They are present in some types of cancer and contribute to the persistence and recurrence of the disease.

Examine the clonal nature of cancer: Cancer is often clonal, meaning it originates from a single cell that undergoes mutations and proliferates to form a tumor. This clonal expansion is a key feature of cancer development.

Consider the role of external mutagens: While external mutagens such as radiation and chemicals can trigger cancer by causing DNA damage, cancer can also arise from internal factors like genetic predispositions and spontaneous mutations.

Evaluate the impact of epigenetic changes: Epigenetic changes, which involve modifications in gene expression without altering the DNA sequence, can also contribute to cancer development. These changes can affect the regulation of genes involved in cell growth and division.