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

Overview of DNA Replication

Genetics

8. DNA Replication

Overview of DNA Replication

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Multiple Choice

Which cluster of terms accurately reflects the nature of DNA replication in prokaryotes?

Semiconservative, unidirectional, single origin of replication

Conservative, unidirectional, multiple origins of replication

Dispersive, bidirectional, multiple origins of replication

Semiconservative, bidirectional, single origin of replication

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Verified step by step guidance

Recall the three models of DNA replication: semiconservative, conservative, and dispersive. Understand that in semiconservative replication, each new DNA molecule consists of one original strand and one newly synthesized strand.

Consider the directionality of replication in prokaryotes. Determine whether replication proceeds in one direction (unidirectional) or both directions (bidirectional) from the origin.

Identify the number of origins of replication in prokaryotic DNA. Prokaryotes typically have a single circular chromosome, so consider how many starting points for replication are present.

Match each term in the options to what is known about prokaryotic DNA replication: semiconservative replication, bidirectional movement of replication forks, and a single origin of replication.

Conclude which cluster of terms correctly describes prokaryotic DNA replication by combining the correct model of replication, directionality, and number of origins.