Question

Describe eukaryotic meiotic recombination pathway and compare/contrast with E. coli's homologous recombination.

Answer 1

Eukarotic meiotic recombination at multiple point on almost all chromosomes and its time taking process,occurs at pachytene stage of prophase I of meiosis I. This leads to recombinant gamate formation which leads to much evolved organisms better suits for existing environment.

In case of E.coli homologous recombination is for small noog genes located on haploid single chromosomes. It's fast process. It's done by process transformation, conjugation and transduction which causes the small fragments of gene carried by external source or bacteria or bacteriophage . For short duration i.e during transformation, conjugation or transduction, bacterial chromosome become partially diploid called merozygote.

Hope it's clear.thanks