Term for Genes on Same Chromosome
Two genes of two different traits located on the same chromosome are said to be:
- Allelomorphs
- Linked — Correct Answer
- Pleiotropic
- Polygenic
Explanation:
Correct Answer: Linked
When two genes of two different traits are located on the same chromosome, they are said to be linked. Linkage is the exception to Mendel's Second Law (Law of Independent Assortment).
Key Points on Linkage
- Complete linkage: Recombination frequency = 0 (e.g., male Drosophila, female silk moth, female poultry, sex chromosomes of all heterogametic species).
- Incomplete linkage: Recombination frequency between 0 and 0.5.
- Linkage is a transient (temporary) cause of genetic correlation between traits.
- Pleiotropy is the permanent cause of genetic correlation.
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
