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

How many pairs of chromosomes are found in a typical human somatic cell?

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Understand that a typical human somatic cell is diploid, meaning it contains two sets of chromosomes—one set inherited from each parent.

Recall that the total number of chromosomes in a human somatic cell is 46, which includes both autosomes and sex chromosomes.

Recognize that chromosomes are organized in pairs, so to find the number of pairs, you divide the total number of chromosomes by 2.

Set up the equation: number of pairs = total chromosomes \div 2, or mathematically, $\text{pairs} = \frac{46}{2}$.

Calculate the division to find the number of chromosome pairs, which represents the number of homologous chromosome pairs in a typical human somatic cell.