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

2. Mendel's Laws of Inheritance

Pedigrees

Genetics

2. Mendel's Laws of Inheritance

Pedigrees

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Multiple Choice

Which of the following is a purpose for which a pedigree chart might be prepared?

To measure the rate of mutation in a population

To trace the inheritance pattern of a genetic trait within a family

To determine the sequence of nucleotides in a gene

To identify the structure of a protein

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Verified step by step guidance

Understand what a pedigree chart is: it is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next, usually within a family.

Recognize that pedigree charts are primarily used to trace the inheritance patterns of genetic traits, such as dominant or recessive traits, through multiple generations.

Eliminate options that do not relate to family inheritance patterns, such as measuring mutation rates in populations, sequencing nucleotides, or identifying protein structures, as these are not purposes of pedigree charts.

Focus on the option that mentions tracing the inheritance pattern of a genetic trait within a family, as this directly aligns with the function of pedigree charts.

Conclude that the main purpose of preparing a pedigree chart is to analyze how a genetic trait is passed down through family members over generations.