Respuesta :

Explanation:

Self-incompatibility

It is one of the widespread mechanism in the flowering plants which avoids the inbreeding and promotes the outcrossing .

The SI response is controlled genetically by one or more multi - alleic loci , and relies on the series of the complex cellular interactions between the pistil and the slef - incompatible pollen .

The function of SI is to prevent the process of self - fertilization .

Mechanism of Self - incompatibility -

The mechanism of SI is based on , protein - protein interactions .

For example ,

For single locus termed as S , which has many different allens in the species population .

Due to similar genetic and morphological manifestation , the mechanism have involved independently  , and are based on different cellular components , Hence , each mechanism has its own unique S - genes .