4. Some transposases use extensive DNA replication to leave one copy of the element behind in a process called ____________________. A. persistent transposition B. chronic transposition C. exchange transposition D. replicative transposition E. none of the above 5. Which of the following is not an example of a transposable element found in bacteria? A. Tn5 B. Tn10 C. IS1 D. IS903 E. Xis 6. Besides a transposase, many common composite transposons in bacteria encode genes for: A. Toxin production B. Antibiotic resistance C. DNA repair D. Homologous recombination E. None of the above
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.
4. Some transposases use extensive
A. persistent transposition
B. chronic transposition
C. exchange transposition
D. replicative transposition
E. none of the above
5. Which of the following is not an example of a transposable element found in bacteria?
A. Tn5
B. Tn10
C. IS1
D. IS903
E. Xis
6. Besides a transposase, many common composite transposons in bacteria encode genes for:
A. Toxin production
B. Antibiotic resistance
C. DNA repair
D. Homologous recombination
E. None of the above
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