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Posted 3 months ago
Seymour Benzer used complementation and recombination to analyse rll mutations in bacteriophage TT
4. Which of the following statements is correct when applied to his experiments?

Wild - type T4 can infect two different strains of E. coli bacteria, strains B and K
rll mutant T4 can infect E. coli strain BB
rll mutant T4 cannot infect EE. coli strain KK

All of the above
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Answer from Sia
Posted 3 months ago
Key Concept
Complementation and recombination in Benzer's experiments
Seymour Benzer's experiments with the rll locus of bacteriophage T4 involved using complementation and recombination tests to map mutations at a very fine scale. His findings showed that wild-type T4 can infect both E. coli strains B and K, while rll mutants can infect strain B but not strain K, due to the inability of rll mutants to grow on a K strain that lacks the B substance necessary for phage adsorption and subsequent infection.

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