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 of the following could possibly increase genetic variation indirectly?

Complete dominance at a single gene locus

Replication of DNA without errors

Epistasis between two genes affecting a trait

Strict Mendelian inheritance with no gene interaction

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Verified step by step guidance

Understand the concept of genetic variation: Genetic variation refers to differences in DNA sequences among individuals, which can lead to differences in traits.

Analyze each option in terms of its effect on genetic variation: For example, 'Complete dominance at a single gene locus' involves one allele masking another but does not create new variation; it only affects how existing variation is expressed.

Consider 'Replication of DNA without errors': This maintains the current genetic information without introducing new mutations, so it does not increase variation.

Examine 'Epistasis between two genes affecting a trait': Epistasis is an interaction where one gene affects the expression of another gene, which can create new phenotypic combinations and thus indirectly increase genetic variation in traits.

Evaluate 'Strict Mendelian inheritance with no gene interaction': This follows predictable inheritance patterns without interactions, so it does not increase variation beyond what is already present.