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

Pleiotropy

Genetics

3. Extensions to Mendelian Inheritance

Pleiotropy

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Multiple Choice

Which term describes the phenomenon where a single gene influences multiple phenotypic traits in an organism?

Pleiotropy

Codominance

Epistasis

Polygenic inheritance

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Verified step by step guidance

Understand the question is asking for a term that describes a single gene affecting multiple phenotypic traits.

Recall definitions of the given terms: Codominance refers to both alleles being expressed equally in a heterozygote; Epistasis involves one gene affecting the expression of another gene; Polygenic inheritance involves multiple genes contributing to a single trait.

Recognize that the term 'Pleiotropy' specifically means one gene influencing multiple distinct traits or phenotypes in an organism.

Confirm that the phenomenon where a single gene affects multiple traits matches the definition of Pleiotropy.

Conclude that the correct term describing this phenomenon is Pleiotropy.