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

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

Similarities in DNA and amino acid sequences of proteins between two different species may indicate which of the following?

Complete functional divergence of the proteins

Random mutation events occurring independently

Convergent evolution without any genetic relationship

A common evolutionary ancestor

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Verified step by step guidance

Understand that similarities in DNA and amino acid sequences between two species suggest a shared genetic heritage rather than random chance or independent events.

Recall that proteins are encoded by genes, and similar sequences imply that these genes have been inherited from a common ancestor.

Recognize that convergent evolution can produce similar traits but usually does not result in highly similar DNA or amino acid sequences because the underlying genetic code differs.

Consider that complete functional divergence would likely reduce sequence similarity, so high similarity argues against this option.

Conclude that the most reasonable explanation for sequence similarity is that the species share a common evolutionary ancestor, reflecting their relatedness through descent.