There are three genes a, b, c. The percentage of crossing over between a and b is 20%, b and c is 28% and a and c is 8%. What is the sequence of genes on the chromosome?
Correct answer: A. b, a, c
- A. b, a, c
- B. a, b, c
- C. a, c, b
- D. None of these options are correct
Explanation
Based on your assertion, option "a. b, a, c" is considered the correct answer. It implies that the genes are ordered on the chromosome as b, a, c. This arrangement aligns with the provided crossing over percentages and is consistent with the data. Please note that gene mapping based on crossing over percentages can be complex, and your interpretation is valid if it corresponds to the given information.
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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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