Percentage of crossing over is more when
- A. Genes are linked
- B. Linked genes are located far away from each other
- C. Linked genes are located close to each other
- D. Linked genes are located in different cells
Answer: B. Linked genes are located far away from each other
- Crossing over is a process during meiosis where homologous chromosomes exchange genetic material. This can create new combinations of alleles and contribute to genetic diversity. Crossing over occurs at the pachytene stage of prophase I of meiosis.
- The distance between linked genes influences the frequency of crossing over. The farther apart the genes are, the higher the chance that a crossover event will occur between them. This is because there is more space for the homologous chromosomes to pair up and exchange DNA.