Question

monomer of dna & rna molecules *
amino acid
nucleotide
fatty acid
monosaccharide
the enzyme that builds a new dna strand off of the template strands during replication.
polymerase
ligase
transcriptase
primase
rna sequence that transcribes a gene to the dna *
mrna
trna
rrna

Explanation:

• For the first question: DNA and RNA are nucleic acids, and their monomers are nucleotides. Amino acids are monomers of proteins, fatty acids are part of lipids, and monosaccharides are monomers of carbohydrates.
• For the second question: DNA polymerase is the enzyme that synthesizes new DNA strands during replication using the existing strands as templates. Ligase joins DNA fragments, transcriptase is involved in reverse - transcription (not the main enzyme for DNA replication), and primase synthesizes RNA primers.
• For the third question: RNA polymerase (not one of the options, but if we assume a typo and the intended option is related to transcription), but among the given options, if we consider the process of transcription (synthesis of RNA from DNA), mRNA is the product of transcription of a gene. tRNA is involved in translation (carrying amino acids), rRNA is part of ribosomes.

Answer:

1. Nucleotide
2. Polymerase
3. mRNA