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Molecular Biology Practice Test: Recombination
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Avg score: 85% Most missed: “What is branch migration?”
Recombination topics include: Molecular basics of homologous recombination, site specific recombination and higher organisms recombination.  Genetic recombination is the exchange of genetic material between different organisms. It results in offspring with combinations of traits that are different from those of either parent.  Recombination occurs during meiosis, a process that breaks and recombines pieces of DNA to produce new combinations of genes. Recombination scrambles pieces of maternal and paternal genes, which ensures that genes assort independently from one another.  Here are some... Show more
Molecular Biology Practice Test: Recombination
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25 Questions

1. What is the central protein of homologous recombination?
2. After cleaved by RuvC the resulting ligated recombination products will only be the splice product.
3. What is gene conversion?
4. How does tyrosine recombinase acts?
5. How many mechanisms are involved in the recombination process?
6. The RecBCD pathway involves the use of ligases.
7. If the foreign DNA lacks the Chi site what will happen?
8. What is the cleavage site of RuvC?
9. How many classes of sequences are carried by the recombination site?
10. In bacteria specific proteins are involved in the RecBCD pathway.
11. What is branch migration?
12. How many times the frequency is increased by the Chi sites?
13. What is non-disjunction?
14. Which component cleaves the specific DNA strands at the Holliday junction?
15. Processing of the DNA at the break site occurs at the 3’ end.
16. The nuclease activity of the RecBCD is prone to digest the bacterial cell wall from foreign DNA.
17. What is the other name of DSB repair pathway?
18. RecBCD pathway is an ATP dependent process.
19. Chi is the control site of the RecBCD pathway.
20. What is the function of Salmonella Hix invertase?
21. How many subunits of Spo11 are involved in the process of cleavage of DNA?
22. Single strand break repair pathway involves genetic exchange.
23. What is the holiday junction resolving enzyme?
24. What is the enzyme involved in the tyrosine recombination process?
25. Site specific recombination is ATP dependent process.