Independent assortment of genes does not takes place when:
Correct answer: B. Genes are linked and located on same chromosome
- A. Genes are located on homologous chromosomes
- B. Genes are linked and located on same chromosome
- C. Genes are located on non-homogenous chromosome
- D. All of these
Explanation
Independent assortment of genes occurs when genes are located on different chromosomes and segregate independently during meiosis. Genes located on homologous chromosomes (option a) do not hinder independent assortment. Genes located on non-homologous chromosomes (option c) do not hinder independent assortment. Genes being linked and located on the same chromosome (option b) can prevent independent assortment. So, the correct answer is option b.
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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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