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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 of the following statements best describes a feature of digenic single nucleotide polymorphisms (d-SNPs)?

They are synonymous mutations that do not alter the amino acid sequence of a protein.

They involve the interaction of two different genes, where specific SNPs in both genes together influence a trait.

They refer to SNPs that are always located on the same chromosome and inherited together.

They are single nucleotide changes that occur within a single gene and independently affect phenotype.

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Verified step by step guidance

Step 1: Understand what a single nucleotide polymorphism (SNP) is — a variation at a single position in a DNA sequence among individuals.

Step 2: Recognize that 'digenic' refers to involving two genes, so digenic SNPs imply interactions between SNPs located in two different genes.

Step 3: Differentiate between SNPs that act independently within a single gene and those that require interaction between two genes to influence a trait.

Step 4: Note that synonymous mutations do not change the amino acid sequence, but digenic SNPs focus on gene interactions rather than mutation type.

Step 5: Conclude that digenic SNPs best describe the scenario where specific SNPs in two different genes together influence a trait, highlighting gene-gene interaction.