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 best indicates an enhancer region in eukaryotic DNA?

A DNA sequence that increases transcription of a gene when bound by specific proteins, regardless of its orientation or distance from the promoter

A DNA sequence located immediately upstream of the transcription start site that binds RNA polymerase

A region of DNA that codes for a repressor protein

A sequence that signals for the termination of transcription

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Verified step by step guidance

Understand the role of an enhancer in eukaryotic gene regulation: Enhancers are DNA sequences that increase the transcription of a gene when bound by specific transcription factors or proteins.

Recognize that enhancers can function regardless of their orientation (forward or reverse) and can be located far away from the promoter region, either upstream or downstream of the gene they regulate.

Differentiate enhancers from promoters, which are DNA sequences located immediately upstream of the transcription start site and are essential for the initiation of transcription by binding RNA polymerase.

Identify that regions coding for repressor proteins are not enhancer sequences themselves but rather code for proteins that can inhibit transcription.

Note that sequences signaling termination of transcription are involved in ending transcription and do not enhance gene expression.