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 correctly describes the properties of the E. coli and human genomes?

E. coli has multiple linear chromosomes, while humans have a single circular chromosome.

E. coli has a single circular chromosome of about 4.6 million base pairs, while humans have multiple linear chromosomes totaling about 3 billion base pairs.

Both E. coli and humans have single circular chromosomes of similar size.

E. coli and humans both have multiple linear chromosomes, but E. coli's genome is larger.

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Verified step by step guidance

Step 1: Understand the basic structure of the E. coli genome. E. coli is a prokaryote, and most prokaryotes have a single circular chromosome. This chromosome contains all the genetic information necessary for the bacterium's functions.

Step 2: Understand the basic structure of the human genome. Humans are eukaryotes, and eukaryotic genomes are organized into multiple linear chromosomes. Humans have 23 pairs of chromosomes, making a total of 46 linear chromosomes.

Step 3: Compare the size of the genomes. The E. coli genome is approximately 4.6 million base pairs (Mb), which is relatively small. The human genome is much larger, with about 3 billion base pairs (Gb) spread across multiple chromosomes.

Step 4: Analyze the options given in the problem. Identify which description correctly matches the known facts about E. coli and human genomes: E. coli has a single circular chromosome of about 4.6 million base pairs, and humans have multiple linear chromosomes totaling about 3 billion base pairs.

Step 5: Conclude that the correct description is the one that states E. coli has a single circular chromosome of about 4.6 million base pairs, while humans have multiple linear chromosomes totaling about 3 billion base pairs.