GENE MAPPING - OUR RISHIS HAD IT Ancient Indian Rishis seemed to have studied in-depth the modern genetics thousands of years ago. This is an amazing genetic science we Indians follow called By a different name known as GOTRA systems. The word GOTRA is familiar to us especially when we sit for performing Pooja, the priest asks for it. Gotta formed from two sanskrit words GAU (cow) and Trahi (shed). So, Gotra means cowshed. Gotra is like a cowshed protecting a particular male lineage. We identify our male lineage-gotra by considering descendants of the 8 great Rishi known as Sapta rishi and one more as Bharadwaj rishi. All the other gotra evolved from these Rishis only. Biologically, human body has 23 pairs of XX chromosomes (each one from father and one from mother). Out of these 23 pairs, only one pair decides the gender and so that pair is known as XY sex chromosomes. During conception, if the resultant cell formed is OF XX chromosomes, then the child will be girl, if it is XY then it is boy. They are 8 different Y chromosomes from 8 Rishis. If we are from Same Gotra then it means we are from same root ancestor. THIS ALSO MEANS there eight categories of man. Marriages between same Gotra will increase the risk of causing genetic disorders as same Gotra Y chromosomes cannot have crossover and it will activate the defective cells. If this continues, it will reduce the size and strength of Y chromosome which is crucial for the creation of male. If no Y chromosome is present in this world, then it will cause males to become extinct. So Gotra system is a method to avoid genetic disorders and attempt to protect Y chromosome. Amazing bio-science by our Maharishis. Our Heritage is unarguably THE GREATEST.