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

In a karyotype, which of the following can be directly observed?

The specific DNA sequence of a gene

The number and structure of chromosomes

The expression level of interacting genes

The presence of epistatic interactions

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Verified step by step guidance

Understand what a karyotype is: it is a visual representation of the chromosomes in a cell, typically arranged in pairs and ordered by size and shape.

Recognize that a karyotype allows observation of the number of chromosomes, which can reveal abnormalities such as extra or missing chromosomes.

Note that the structure of chromosomes, including large-scale changes like deletions, duplications, translocations, or inversions, can also be seen in a karyotype.

Understand that specific DNA sequences of genes cannot be observed directly in a karyotype because it shows chromosomes at a microscopic level, not the nucleotide sequence.

Realize that gene expression levels and epistatic interactions involve molecular and functional data that require other techniques (e.g., gene expression assays or genetic interaction studies) and are not visible in a karyotype.