Strands labelled A & D are the parent strands
As observed these strands are acting as a template for strands B & C which are currently being newly synthesized
Explanation:
Synthesis of a new strands requires a template. During replication, a nucleotide on the new strand is placed at the position of complimentary nucleotide on the template strand. Adenine base pairs with Thiamine while Cytosine base pairs with Guanine. The synthesis also happens anti-parallel to the template strand.
Learn More:
For more on DNA replication check out;
https://brainly.com/question/2243228
https://brainly.com/question/1238116
#LearnWithBrainly
