Give scientific reasons: $DNA$ replication is a semi-conservative process.

(N/A) During $DNA$ replication,the hydrogen bonds between the two polynucleotide strands of the parent $DNA$ molecule break in the presence of specific enzymes.
These two strands then separate from each other.
On each of these separated strands,a new complementary strand is synthesized.
At the end of the process,each newly formed $DNA$ molecule consists of one original parental strand and one newly synthesized strand.
Therefore,it is concluded that $DNA$ replication is a semi-conservative process.