Clusters of similar R loci, called gene families, are thought to have originated when _____.

+1 vote

 

  

plant breeders cross-pollinated nonresistant plants

  

errors in recombination occurred because chromosomes misaligned during crossing over

  

R genes corresponded with avr genes during infection

  

the number of R genes was reduced by mutation

 

asked Dec 31, 2012 in Biology by anonymous
    

1 Answer

0 votes

 

errors in recombination occurred because chromosomes misaligned during crossing over

 

answered Dec 31, 2012 by anonymous

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