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Introns vs. Exons

The main difference between Introns and Exons is that the Introns is the genetic codes that remain inside the nucleus to keep the DNA safe in genes, whereas Exons are the genetic codes that may leave the nucleus to complete the process of translation to synthesize proteins.

Key Differences

Introns include the very less sequence conservation; on the other hand, exons include the very high sequence conservation.
Samantha Walker
Apr 20, 2020
Introns are related to the non-coding region of DNA; on the other hand, exons are associated with the coding part of DNA.
In the transcription process, introns are bases present between two exons; on the opposite side, exons are the bases that involves the amino acid sequencing in the coding region.
Introns are always present inside the nucleus; on the other side of the coin, exons are also present inside the core and can transport outside to the cytoplasm and involves in the translation process.
Aimie Carlson
Apr 20, 2020
The function of introns is considered that it is a substantial part of the DNA; on the other hand, the purpose of exons is the translation of DNA into proteins.
Introns are mainly present in the DNA and mRNA primary transcript; on the flip side, exons are primarily present in both mRNA and DNA.
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Introns are the parts of DNA that do not involve in the encoding process of amino acid sequences in the coding region; on the flip side, exons are the parts of DNA that participate in the encoding process of amino acid sequences in the coding region.
Introns are present in the eukaryotes only; on the other side of the coin, exons are found in both eukaryotes and prokaryotes.

Comparison Chart

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Introns are the parts of DNA that are not involved in the sequencing of amino acids in the coding region
Exons are the part of DNA that are included in the sequencing of amino acids in the coding region

Coding DNA

It is related to non-coding DNA
It is connected to coding DNA

Transcription

It is considered as bases between two exons
Exons are the bases that encode a sequence of amino acid of the protein

Presence

It is found only in eukaryotes
It is located in eukaryotes and prokaryotes
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Sequence Conservation

Its sequence is less conserved
Its sequences are highly conserved
Aimie Carlson
Apr 20, 2020

Presence in Genome

It is found in the primary transcript of DNA and RNA
It is located in both DNA and RNA

Functions

It is considered as the substantial fraction of DNA
It is used in the translation of amino acid into proteins.
Aimie Carlson
Apr 20, 2020

Introns and Exons Definitions

Introns

A segment of a gene situated between exons that is removed before translation of messenger RNA and does not function in coding for protein synthesis.

Exons

A nucleotide sequence that is found in a gene, codes information for protein synthesis, and is transcribed to messenger RNA.

Introns

Plural of intron
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Exons

Plural of exon

Introns vs. Exons

Introns are always found inside the nucleus; on the other hand, exons are located both inside and outside the nucleus. Introns are the parts of DNA that are not involved in the sequencing of amino acids in the coding region; on the flip side, exons are the part of DNA that are included in the sequencing of amino acids in the coding region. Introns are related to the non-coding area of DNA; on the opposite side, extrons are associated with the coding part of DNA. Introns are known as the bases between two exons; on the flip side, exons are known as the bases that encode the sequencing of amino acid into proteins.

Introns are present only in eukaryotes; on the opposite side, exons are present in both eukaryotes and prokaryotes. Introns always stay inside the nucleus; on the other side of the coin, exons can move from core to cytoplasm. There is less sequence conservation in introns as compared to exons; on the other hand, there is very high sequence conservation in exons as compared to introns.

Introns are present only in the primary transcript of DNA and mRNA; on the flip side, exons are present in both RNA and DNA. The function of introns is that it is related to the substantial fraction of DNA; on the other hand, the purpose of exons is that it is involved in the translation of proteins.

What are Introns?

Introns are the parts of DNA that do not involve in the encoding process of amino acid sequences in the coding region. It is the sequence of nucleotides that includes in interruption of gene sequencing. The word is the Greek word meaning ‘inside the nucleus.’ It indicates that introns always functional inside the nucleus and cannot be transported outside the core where they are non-functional. It is always present inside the nucleus of the eukaryotes only.

Its function is not known entirely, but it is considered a substantial part of the DNA. Its primary purpose is to keep the DNA genome that is present inside the nucleus. It is just the bases that are present in between the exons. In genomes, it is present as the primary transcript of DNA and mRNA. The amino acid sequence conservation is very less in the introns.

Introns are the genetic codes that are involved in the transcription and translation processes for the synthesis of proteins. Introns are very common in the higher vertebrates such as mice and human beings but less common in other varieties of microorganisms. The introns are the types of bases that are present in between the exons in the genomes of DNA.

What are Exons?

Exons are the parts of DNA that involve in the encoding process of amino acid sequences in the coding region. It is the sequence of nucleotides that are included in the translation process. The word exon means outside the nucleus. It implies that exons are not only functional inside the nucleus but also functional outside the nucleus in the cytoplasm; that’s why it can be transported outside the nucleus. It can also found both outside and inside the nucleus.

Its primary function is to start or complete the process of translation for the synthesis of proteins. It also involves the protection of DNA outside the nucleus as well. It is related to the coding region of the DNA. It causes the encoding of the sequence of the amino acids. It is present in both prokaryotes and eukaryotes. It is found in both the DNA and mRNA.

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