What is the difference between DNA and chromosomes and genes?

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person’s genes. Genes are contained in chromosomes, which are in the cell nucleus.

What is the difference between chromosomes and RNA?

Chromosomes are composed of DNA arranged into genes and other non-coding areas. The genes are the blueprints for making various molecules that cells need to function, including enzymes. When most genes are expressed, they are translated into messenger RNA (mRNA) molecules, which are then transcribed into proteins.

What is the difference between RNA and DNA?

There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

Is chromosome and DNA the same?

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

What is the difference between gene and DNA?

Gene is coded with heredity information. DNA encodes the genetic instructions. A gene is present on a chromosome. DNA is present within the nucleus of the cell.

Are chromosomes made of DNA and RNA?

The chromosomes of a eukaryotic cell consist primarily of DNA attached to a protein core. They also contain RNA. DNA wraps around proteins called histones to form units known as nucleosomes. These units condense into a chromatin fibre, which condenses further to form a chromosome.

Where is DNA on a chromosome?

nucleus
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.