The answer is the origin
of replication. This is where the replication bubble is formed. Two opposite replication
forks (Y-shaped regions) of DNA are formed when
the double helix is unzipped by DNA helicases. Transcription factors, polymerase III and primer then bind to the region
to begin transcription.
if sex cells were identical, there won't be genetics variations and we will just all be identical to our parents. genetic variation allows us to better adapt and survive