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

8. DNA Replication

Semiconservative Replication

Genetics

8. DNA Replication

Semiconservative Replication

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Multiple Choice

DNA is replicated through which method?

Conservative replication

Nonconservative replication

Dispersive replication

Semiconservative replication

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Verified step by step guidance

Understand the concept of DNA replication: DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. This is crucial for cell division and inheritance.

Learn about the semiconservative model: In semiconservative replication, each of the two parental DNA strands serves as a template for new strands. After replication, each DNA molecule consists of one original strand and one newly synthesized strand.

Differentiate between replication models: Conservative replication would result in one molecule with two old strands and another with two new strands. Dispersive replication would produce DNA strands that are a mix of old and new DNA segments.

Recognize the experimental evidence: The Meselson-Stahl experiment provided strong evidence for semiconservative replication by using isotopic labeling to show that DNA molecules after replication contained one old and one new strand.

Conclude with the significance: Semiconservative replication ensures genetic consistency across generations, as each new cell receives an exact copy of the DNA, preserving genetic information.