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

Which of the following best describes the relationship between the environment and phenotype?

The environment only affects the phenotype if independent assortment does not occur.

Phenotype is solely determined by genotype and is not affected by environmental factors.

The environment determines the genotype of an organism directly.

The environment can influence the expression of an organism's phenotype, even if the genotype remains unchanged.

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Verified step by step guidance

Step 1: Understand the definitions of genotype and phenotype. The genotype is the genetic makeup of an organism, while the phenotype is the observable physical or biochemical characteristics resulting from the interaction of the genotype with the environment.

Step 2: Recognize that the environment can influence how genes are expressed without altering the underlying DNA sequence. This means that the phenotype can change due to environmental factors even if the genotype remains constant.

Step 3: Analyze the incorrect options: the environment does not directly change the genotype, and phenotype is not solely determined by genotype because environmental factors also play a role.

Step 4: Understand that independent assortment is a genetic principle related to how alleles segregate during meiosis and does not restrict environmental effects on phenotype.

Step 5: Conclude that the best description is that the environment can influence the expression of an organism's phenotype, even if the genotype remains unchanged.