Match Each Term with the Appropriate Definition

Match each term with the appropriate definition.
-​gene variant

A) represents all the genes and DNA contained in an organism
B) basic units of heredity that occupy specific places on chromosomes
C) study of the functions and interactions of all genes in the genome
D) structures in the nuclei of cells that contain genes
E) segments of genes that provide instructions for the synthesis,or production,of specific enzymes and other proteins needed by cells to carry out life- and health-sustaining processes
F) study of the effects of nutrients on gene expression,and the impact of nutrient-gene interactions on health and disease
G) rare disorder caused by lack of the enzyme phenylalanine hydroxylase
H) heritable changes in gene function that do not entail a change in DNA sequence
I) alteration in the normal sequence of a gene due to a substitution of a set of bases
J) occurs due to a defect in a gene that produces a protein that controls how much iron is absorbed from food
K) disorders resulting from one abnormal gene
L) single-gene defect disorder that interferes with the body's utilization of the sugar galactose
M) one of the structural components,or building blocks,of DNA and RNA
N) rare disorder caused by a mutation in one of two genes that affect the ability of small intestine cells to dispose of plant sterols in the feces
O) specific genetic makeup of an individual as coded by DNA