The recombination frequency is 20% between the two genes. The distance between them in the unit map is:
Correct answer: A. 20
- A. 20
- B. 60
- C. 30
- D. 80
Explanation
The recombination frequency is 20% between the two genes. The distance between them in the unit map is 20. If 1% of recombination frequency is equal to 1 unit map distance, the two linked genes A and B with a 20% recombination frequency must be 20 units apart.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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