Table of contents

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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

1. Introduction to Genetics

Fundamentals of Genetics

Genetics

1. Introduction to Genetics

Fundamentals of Genetics

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Multiple Choice

Which of the following statements accurately describes a typical gene?

A gene is a carbohydrate molecule that stores genetic information.

A gene is a segment of DNA that encodes information for the synthesis of a specific protein or functional RNA.

A gene is a protein that determines the structure of DNA.

A gene is a lipid that regulates cell membrane fluidity.

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Verified step by step guidance

Step 1: Understand what a gene fundamentally is in molecular genetics. A gene is a unit of heredity that carries information from one generation to the next.

Step 2: Recall that genes are made up of DNA, which is a nucleic acid, not carbohydrates, proteins, or lipids. DNA contains sequences of nucleotides.

Step 3: Recognize that the primary function of a gene is to encode instructions for making molecules that perform functions in the cell, mainly proteins or functional RNA molecules.

Step 4: Eliminate incorrect options by matching their descriptions with the known structure and function of genes. For example, genes are not carbohydrates, proteins, or lipids.

Step 5: Conclude that the accurate description of a gene is that it is a segment of DNA that encodes information for the synthesis of a specific protein or functional RNA.