What is a genome?
A) a cluster of genes that are all regulated in the same manner
B) a measure of the genetic variability in a population
C) a region of DNA that codes for a single protein
D) all of the protein in a cell at a given point in time
E) the total genetic information in a typical cell of an organism

Question

Quizplus · Accepted Answer

A genome refers to the complete set of genetic material present in a cell, which includes all the DNA sequences, genes, and non-coding regions. This genetic information is organized into chromosomes in most organisms, and it provides the blueprint for the development, function, and behavior of the cell or organism. Therefore, option E, "the total genetic information in a typical cell of an organism," is the correct definition of a genome. Option A is incorrect because not all genes are regulated in the same manner. Option B is incorrect because genetic variability refers to the differences in the DNA sequences between individuals in a population. Option C is incorrect because a gene is a sequence of DNA that codes for a functional protein or RNA molecule, not a region that codes for a single protein. Option D is incorrect because it refers to the proteome, which is the total amount of proteins produced by a cell at a given time, whereas the genome contains the genetic instructions for the production of all proteins in the cell.

What Is a Genome