Which is true of genes?
they are proteins that produce sections of dna which control the cell's activities.
they are sections of dna that produce the proteins that control an organism's
characteristics.
they are the same as traits which show up in an organism iſ they are dominant.
they are features that can be observed rather than measured.

They are sections of DNA that produce the proteins that control an organism's characteristics.

Explanation:

Genes are units of heredity found in a certain place on a chromosome and that codes for a certain product. A trait of an organism is a characteristic that an organism can pass on to its offspring through its genes . Genes are sections of DNA that contains information which controls a trait. Therefore, a trait depends on genes. Therefore; genes are the sections or segments of DNA that code for a specific trait in organisms.

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey