Table of contents
- 1. Introduction to Genetics(66)
- 2. Mendel's Laws of Inheritance(333)
- 3. Extensions to Mendelian Inheritance(204)
- 4. Genetic Mapping and Linkage(147)
- 5. Genetics of Bacteria and Viruses(101)
- 6. Chromosomal Variation(106)
- 7. DNA and Chromosome Structure(129)
- 8. DNA Replication(69)
- 9. Mitosis and Meiosis(67)
- 10. Transcription(89)
- 11. Translation(150)
- 12. Gene Regulation in Prokaryotes(102)
- 13. Gene Regulation in Eukaryotes(124)
- 14. Genetic Control of Development(76)
- 15. Genomes and Genomics(138)
- 16. Transposable Elements(26)
- 17. Mutation, Repair, and Recombination(148)
- 18. Molecular Genetic Tools(146)
- 19. Cancer Genetics(62)
- 20. Quantitative Genetics(96)
- 21. Population Genetics(112)
- 22. Evolutionary Genetics(38)
3. Extensions to Mendelian Inheritance
Understanding Independent Assortment
3. Extensions to Mendelian Inheritance
Understanding Independent Assortment: Videos & Practice Problems
13PRACTICE PROBLEM
When a tall pea plant with round seeds (TTRR) was crossed with a dwarf pea plant with wrinkled seeds (ttrr), where T stands for dominant tall and t for recessive dwarf height, and R for dominant round and r for recessive wrinkled seed shape, the results were as follows: The individual F1 populations all possessed tall, round seeds. However, self-pollination among F1 individuals resulted in a phenotypic ratio of 9:3:3:1. This ratio is caused by which of the following principles?
When a tall pea plant with round seeds (TTRR) was crossed with a dwarf pea plant with wrinkled seeds (ttrr), where T stands for dominant tall and t for recessive dwarf height, and R for dominant round and r for recessive wrinkled seed shape, the results were as follows: The individual F1 populations all possessed tall, round seeds. However, self-pollination among F1 individuals resulted in a phenotypic ratio of 9:3:3:1. This ratio is caused by which of the following principles?