Which term refers to a segment of dna that produces a protein that forms the building blocks of our body?
a. gene
b. hormone
c. mutation
d. reflex

The best choice is A.

A gene is a specific sequence of nucleotides in DNA or RNA that is located usually on a chromosome and that specifies the structure of a particular polypeptide and especially a protein, or controls the function of other genetic material.

Information from the gene is copied (transcribed) on mRNA in the nucleus. mRNA then leaves the nucleus and enters the cytoplasm where it attaches to a ribosome. The information on the attached  mRNA is  decoded (translated) by tRNA  which then fetches the amino acids according to this information and brings them to the ribosome where they are linked together to form the specified protein.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation: