Redundancy --- The situation in which genes (often paralogous) have overlapping functions.
基因（常为种内同源基因）间功能有重叠的现象。
2
The gene overlapping(ATGA) is widespread in streptomycetes, making it difficult to perform in-frame deletion or replacement for functional analysis of target genes.
链霉菌基因组中常见连续两个基因重叠的现象（如ATGA），这为基因的同框敲除或取代研究带来很大困扰。
3
The "No. 117A" is controled by two pairs overlapping recessive genes in all ready alike functions.