Question

an old dna strand is used as a ___ for the assembly of a new dna strand. source of nucleotides template primer model complement

Explanation:

In DNA replication, the old DNA strand serves as a template. DNA polymerase reads the template strand and adds complementary nucleotides to form a new DNA strand. A primer is a short nucleic acid sequence that provides a starting point for DNA synthesis. A complement is the newly - formed strand. A model is a general representation, and the source of nucleotides is an external supply (like free - floating nucleotides in the cell), not the old DNA strand itself.

Answer:

template