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

21. Population Genetics

Allelic Frequency Changes

Genetics

21. Population Genetics

Allelic Frequency Changes

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Multiple Choice

A group of finches live on a small, isolate island. One day, a few finches travel to a distant island and start a new population of finches. This type of change in a population is called what?

Speciation

Founder effect

Bottleneck effect

Genetic drift

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Verified step by step guidance

Understand the concept of genetic drift, which is a mechanism of evolution that involves random changes in the frequency of alleles in a population.

Learn about the founder effect, a specific type of genetic drift that occurs when a small group of individuals breaks off from a larger population to establish a new population.

Recognize that the founder effect can lead to reduced genetic variation in the new population because the small group may not represent the full genetic diversity of the original population.

Differentiate between the founder effect and the bottleneck effect, another form of genetic drift, which occurs when a population's size is significantly reduced for at least one generation.

Apply this understanding to the problem: when a few finches travel to a distant island and start a new population, this scenario is an example of the founder effect, as the new population is established by a small number of individuals from the original population.