Why is dna replication called semiconservative ? Share with your friends Share 1 Tarun answered this because one strand of dna is parental and one is newly synthesis 2 View Full Answer Sachi answered this During replication, the original strand splits into two and new strands are constructed on each. since the one of the two strands of the new DNA belongs to the old DNA (it is conserved) type of replication is called semiconservative replication. 0 Chaudhari Samiksha Kailas answered this Please find this answer 0