Meiosis in diploid organisms results in:

1. production of gametes
2. reduction in the number of chromosomes
3. introduction of variation
4. All of the above
Class 11 pg 167
 
(d) Meiosis is a reduction division which reduces the chromosomes number to half in gametes. Since, it is a special kind of cell division in which exchange of genetic material takes place that brings about variation in next generations. So all options are characteristic features of meiotic cell division.