Recombination is a major mechanism by which coronaviruses (and other viruses) evolve, which must be taken into account when trying to identify their sources. Recombination between two parental, viral genomes (present in the same cell) can create a new viral genome comprised of regions derived from one or the other parent, very similarly to recombination taking place during meiosis of eukaryotes. Viral genomes also show “recombination hotspots” that are similar to their equivalents in eukaryotic genomes. Consider the following set of viral genomes, and of recombinant genomes derived from those parents (color is used to distinguish sequence variants found in the parents, and the x axis shows position in the linear genome, from base 0 to base 30,000). Which genome regions appear to contain a recombination hotspot? Select all that apply Group of answer choices 1 2 4 5
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.
Recombination is a major mechanism by which coronaviruses (and other viruses) evolve, which must be taken into account when trying to identify their sources. Recombination between two parental, viral genomes (present in the same cell) can create a new viral genome comprised of regions derived from one or the other parent, very similarly to recombination taking place during meiosis of eukaryotes. Viral genomes also show “recombination hotspots” that are similar to their equivalents in eukaryotic genomes. Consider the following set of viral genomes, and of recombinant genomes derived from those parents (color is used to distinguish sequence variants found in the parents, and the x axis shows position in the linear genome, from base 0 to base 30,000).
Which genome regions appear to contain a recombination hotspot? Select all that apply
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