![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGO-_RgvbvpYoFZe7_TJ6XY872iK-AiOPQdeSfazDOhfk9LE1NIDZH8qDjisKAe26gy72d9wb4s6hEhXgMgR5DTc6v00AaDXSKfeJX11I6JvCj9J-Gd4p619CD3-DGyUr9n4kWa6acNRQmqE0DmegCqgC5oP6DOrpT3SumEFXB1_bPiUqNrgh_eqUG/s320/pexels-stephanie-lima-16026427.jpg)
EVOLUTION OF SEX According to the various research and surveys It is generally accepted that Isogamy ( Isogamous reproduction is a kind of sexual reproduction in which both the gametes involved in fertilisation have similar morphology. They can not be distinguished as male or female ) was ancestral to Anisogamy ( when two sexually reproduction parents produce gametes of different size and the organism is anisogamous. The sexes of parents are defined on the basis of gametes produced by them ) and evolved several times independently in different group of Eukaryotes { any cell or organism that possesses a clearly defined nucleus. The eukaryotic cell has a membrane that surrounds the nucleus, in which the well defined chromosomes – ( Bodies containing the hereditary material ) are located .} including Protists ( any of a diverse taxonomic group and especially a kingdom of eukaryotic organism that are unicellular and sometimes colonial or less often multicellular and