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Difference Between Gene and DNA

Last Updated : 26 Jul, 2023
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Difference between Gene and DNA:  Genes and DNA are the basic components that make up an organism’s genetic code. Genes and DNA are interconnected yet distinct elements of genetic information. Genes are specific segments of DNA that contain instructions for producing proteins and determining various traits in an organism. On the other hand, DNA is the molecule that stores and transmits the entire set of genetic information. This article will cover the differences between genes and DNA in detail.

Difference Between Gene and DNA

Features Genes DNA
Definition

Segments of DNA that carry hereditary information

A biomolecule that contains the genetic instructions

Composition

Sequences of nucleotides

A double helix structure composed of nucleotides

Function

Code for specific traits or characteristics

Stores and transmits genetic information

Location

Found on chromosomes within the cell nucleus

Present in the nucleus, mitochondria, and chloroplasts

Quantity

Numerous genes exist in an organism

There are two copies of DNA in a cell

What are Genes? 

Genes are the segments of DNA that contain specific instructions for making proteins, which are responsible for the functioning of organisms. Each gene consists of a particular sequence of nucleotides, which are the individual units that make up DNA. The arrangement of these nucleotides within a gene determines the specific traits or characteristics it codes for.

Genes are responsible for various features of an organism, including physical attributes like eye color, height, and hair texture. Also, they play an important role in determining susceptibility to certain diseases and conditions. Genes can be inherited from parents, passed down through generations, and can undergo changes called mutations, which may result in genetic disorders or variations.

What is DNA? 

DNA is a biomolecule that carries the entire set of genetic instructions necessary for the functioning of an organism. It is a long, double-stranded helix structure composed of nucleotides. The four nucleotides present in DNA are adenine, thymine, cytosine, and guanine. These nucleotides pair up in a specific manner—adenine with thymine and cytosine with guanine, forming the double helical structure of DNA. 

The function of DNA is to store and transmit genetic information to the next generation. It is present in the nucleus of most cells, where it is tightly wound into structures called chromosomes. DNA can also be found in other organelles, such as mitochondria and chloroplasts. 

FAQs on the Difference Between Gene and DNA

Q: What is the Difference Between Genes and DNA?

Answer:

Genes and DNA are interconnected yet distinct elements of genetic information. Genes are specific segments of DNA that contain instructions for producing proteins and determining various traits in an organism whereas DNA is a biomolecule that stores and transmits the entire set of genetic information.

Q: What is the Composition of Genes and DNA?

Answer:

Genes are composed of sequences of nucleotides, which are the individual units that makeup DNA. DNA is a double helix structure made up of nucleotides.

Q: What is the Function of Genes?

Answer:

Genes code for specific traits or characteristics in an organism. They provide instructions for forming proteins, which are responsible for the functioning and development of living organisms.

Q: What is the Function of DNA?

Answer:

DNA stores and transmits genetic information to the next generation. It serves as the molecule that carries the entire set of instructions necessary for the development and functioning of an organism.

Q: Where are Genes and DNA located?

Answer:

Genes are found on chromosomes in the cell nucleus, while DNA is present in the nucleus, mitochondria, and chloroplasts.


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