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

3. Extensions to Mendelian Inheritance

Overview of interacting Genes

Genetics

3. Extensions to Mendelian Inheritance

Overview of interacting Genes

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Multiple Choice

Which genetic phenomenon involves the exchange of genetic material between homologous chromosomes during meiosis?

Independent assortment

Nondisjunction

Crossing over

Gene duplication

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Verified step by step guidance

Understand the context of meiosis, which is the process of cell division that reduces the chromosome number by half to form gametes (sperm and egg cells).

Recall that homologous chromosomes are pairs of chromosomes, one from each parent, that have the same genes but may have different alleles.

Identify the genetic phenomena listed: Independent assortment refers to the random distribution of different chromosome pairs to gametes; Nondisjunction is the failure of chromosomes to separate properly; Gene duplication is the copying of a segment of DNA within a chromosome.

Focus on the process where homologous chromosomes physically exchange segments of genetic material during meiosis, which increases genetic variation in offspring.

Recognize that this exchange of genetic material between homologous chromosomes is called crossing over, occurring during prophase I of meiosis.