How are genes related to dna?
genes are monomers that are joined by hydrolysis to make dna.
genes are proteins that bind molecules of dna together to make amino acids.
genes are monomers that are joined by dehydration synthesis to make dna.
genes are sections of dna that program the amino acid sequences of proteins

The correct answer is- Genes are sections of DNA that program the amino acid sequences of proteins.

Gene can be described as a segment of DNA that codes for a particular protein.

They possess information for protein synthesis in the form of nucleotide sequences. Genes are first transcribed to form mRNA ( messenger RNA), which is then translated to produce a particular protein through assembly of various amino acids.

The amino are coded by codon ( sequence of three nucleotide such as AUG codes for methionine) present in mRNA.

Thus, last option is the right answer.

the answer to your question is:

c. complementary base-pairing