10 Questions
Which process involves the exchange of genetic information?
DNA recombination
Which type of DNA recombination occurs as a reciprocal exchange between identical or nearly identical sequences?
Homologous recombination
What is the main difference between homologous recombination and non-homologous recombination?
Homologous recombination occurs between paternal and maternal chromosomes, while non-homologous recombination occurs between different sequences.
Which type of homologous recombination occurs between two separate homologous molecules?
Intermolecular recombination
What is the biological role of recombination?
Generating new gene/allele combinations
Which type of DNA recombination occurs as a non-reciprocal exchange between different sequences with limited sequence homology, such as random insertion of viral genome?
Non-homologous recombination
What is the term for homologous recombination that occurs between two separate homologous molecules?
Intermolecular recombination
Which type of homologous recombination produces a circular DNA and a linear short DNA?
Direct repeats
What is the main biological role of recombination?
Generating new gene/allele combinations
During which process does homologous recombination occur?
Meiosis
Study Notes
DNA Recombination
- Genetic information is exchanged through a process called DNA recombination.
- Homologous recombination occurs as a reciprocal exchange between identical or nearly identical sequences.
- Homologous recombination differs from non-homologous recombination in that it involves the exchange of genetic information between identical or nearly identical sequences.
- Inter-molecular homologous recombination occurs between two separate homologous molecules.
- The biological role of recombination is to increase genetic diversity and facilitate the repair of DNA damage.
- Non-homologous recombination occurs as a non-reciprocal exchange between different sequences with limited sequence homology, such as random insertion of viral genome.
- Inter-molecular homologous recombination is also known as inter-chromosomal recombination.
- Single-strand annealing produces a circular DNA and a linear short DNA.
- The main biological role of recombination is to increase genetic diversity and facilitate the repair of DNA damage.
- Homologous recombination occurs during meiosis, a process of cell division that produces gametes (sperm or egg cells).
Test your knowledge on DNA recombination, the process of exchanging genetic information. Learn about the two main types: homologous recombination and non-homologous recombination.
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