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.
Which of the following statements is TRUE?
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Positive interference occurs when a crossover in one region of a chromosome interferes with crossovers in nearby regions. |
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The higher the coefficient of coincidence, the higher the degree of interference. |
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Linked genes always exhibit recombination frequencies of greater than 50%. |
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Two genes that are located far from each other on the same chromosome will show a lower frequency of recombination than two genes that are close together on the chromosome. |
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Recombination mapping experiments become more accurate as the distance between genes increases. |
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