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

Understanding Independent Assortment

Genetics

3. Extensions to Mendelian Inheritance

Understanding Independent Assortment

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Multiple Choice

Why don't alleles from linked genes assort independently during meiosis?

Because linked genes undergo independent assortment due to crossing over

Because linked genes are located close together on the same chromosome and tend to be inherited together

Because linked genes are only expressed in the presence of dominant alleles

Because linked genes are always located on different chromosomes

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Verified step by step guidance

Recall the principle of independent assortment, which states that alleles of different genes usually segregate independently during meiosis if the genes are on different chromosomes or far apart on the same chromosome.

Understand that linked genes are genes located close together on the same chromosome, which means they tend to be inherited together because the chromosome is passed as a unit during meiosis.

Recognize that because linked genes are physically close, the chance of a crossover event occurring between them is low, so they do not assort independently as genes on different chromosomes do.

Note that crossing over can sometimes separate linked genes, but this happens less frequently the closer the genes are to each other, so linkage reduces independent assortment.

Conclude that the reason linked genes do not assort independently is due to their physical proximity on the same chromosome, causing them to be inherited together more often than not.