Roughly 30% of harvested cantaloupesare wasted because they become overripebefore reaching consumers. Agricultural scientistshave used genetic engineering to insert an applegene into the cantaloupe genome to produce atransgenic (GM) cantaloupe that ripens more slowlyafter harvesting. Is this approach less desirablethan the marker-assisted breeding describedabove? Why or why not?
Genetic Recombination
Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.
Microbial Genetics
Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.
| Roughly 30% of harvested cantaloupes are wasted because they become overripe before reaching consumers. Agricultural scientists have used genetic engineering to insert an apple gene into the cantaloupe genome to produce a transgenic (GM) cantaloupe that ripens more slowly after harvesting. Is this approach less desirable than the marker-assisted breeding described above? Why or why not? |
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