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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

In a diagram showing two homologous chromosomes with unlabeled gene loci, which of the following best describes the arrangement of alleles for two interacting genes (A and B) located on the same chromosome?

The alleles for genes A and B are always inherited independently, regardless of their chromosomal location.

The alleles for genes A and B can be arranged in cis (AB/ab) or trans (Ab/aB) configurations.

The alleles for genes A and B cannot interact if they are on the same chromosome.

The alleles for genes A and B must always be on different chromosomes.

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Verified step by step guidance

Understand that genes located on the same chromosome are said to be linked, meaning they tend to be inherited together rather than independently.

Recognize that for two genes (A and B) on the same chromosome, their alleles can be arranged in two main configurations: cis and trans.

In the cis configuration, both dominant alleles (A and B) are on one chromosome, and both recessive alleles (a and b) are on the homologous chromosome, represented as AB/ab.

In the trans configuration, each chromosome carries one dominant and one recessive allele, such as Ab on one chromosome and aB on the other.

Note that the arrangement (cis or trans) affects how alleles are inherited together during meiosis, and this concept is important for understanding genetic linkage and recombination.