Moderate

Linked genes can be separated by:

Correct answer: B. Crossing over

  • A. Meiosis
  • B. Crossing over
  • C. Mitosis
  • D. Gametogenesis

Explanation

Linked genes can be separated by crossing over. Closer the gene located, more strongly are their genes linked. The farther apart two genes lie, greater are chances of their separation through crossing over. Linked genes can be separated by a process called genetic recombination, which occurs during the formation of gametes (sperm and egg cells) in meiosis. Genetic recombination is the exchange of genetic material between homologous chromosomes, leading to new combinations of alleles on the chromosomes.

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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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