How many base pairs are in on gene?

Question

does it vary or is there an average number?

Answer 1

The size of gene correlates with the size of the protein.
For one amino acid in the protein chain there are three base pairs. You can calculate from this. If globin chain has 141 amino acids then its gene should have 141x3 base pairs. This excludes the parts that constitute introns and promoters etc.

Answer 2

I agree that it varies, although I'm not sure I've ever seen a gene that takes up a whole megaBase, so I'm not sure about a million. I'd say anywhere from a few hundred base pairs to several thousand if not hundreds of thousands.

A large reason for the variation in eukaryotes is the variable size of introns. The gene is more than just the coding region of the protein, it's also the introns, promoter, etc. So some introns are huge, and some are small and that varies the amount that is in a gene.

Answer 3

Well if you took all of the bps in a human genome and divided them by how many genes there are in said genome you could get an average but it wouldnt tell you much.

This is because the number of base pairs in a gene varies completely from gene to gene.....hundreds to millions of bps

Is there a particular gene or type of gene you are interested in?

EDIT -

DO NOT listen to the person below who said there are three bp in a gene
They are probably confusing the concept of three nucleotides = one codon. A codon is not the same as a gene. A gene is made up of a number of codons. Each codon represents an amino acid.


Also the person who said the human gene has a few billion base pairs is also wrong I think they are talking about the human GENOME which is a completely different thing.

The human genome has about 20,000 genes all of varying sizes!!!!!

Please dont answer questions like this unless you know what you are talking about it is unfair to be misleading to someone who is unsure and needing help.

Answer 4

Each gene will vary in size. There is no set average for all genes from every animal,plant,bacteria. I can say that the average gene size for a bacteria like E. coli is about 1000 bp.

Answer 5

properly, it incredibly is a step-sensible technique: The 4 nucleotides (bases) are frequently discovered as pairs of complementary bases, as DNA is double stranded. A & T are complementary, as are C & G. So if one strand has an A, the different strand has a T that sticks to it. The 4 diverse nucleotides are arranged in triplets that code for a particular amino acid (ACT, GAT, TTT, etc.). So a strand of DNA could have one among those available triplets, counting on the place you initiate up. between the triplets is a particular 'start up' codon (for Methionine) that tells the translator the place to start up translating after it hits a particular section that announces "start up on the subsequent Methionine". There are 3 different triplets that tell the translator to end (they are referred to as 'end' codons). those are the commencing up and ending factors of a gene. The DNA is decoded and used as a template to construct a strand of amino acids that make up a protein, making use of RNA as an middleman, non everlasting "working reproduction" (it gets a splash special, so i'm going to go away it at that). the tip effect is a protein, which will do any of a bazillion various issues, counting on what variety of protein it incredibly is, and how it incredibly is been changed. Proteins make the international artwork, and DNA makes up the grasp plan for protein shape. A gene is the incredibly plan for a particular protein, and involves a piece of DNA which has a start up and a end codon. The gene itself is probable broken up into chunks alongside the chromosome, with bits of coding DNA being separated via bits of non-coding, "nonsense" DNA. it incredibly is an entire different point of cool, that the translation technique is desperate as much as place jointly those scattered coding products right into a single strand to construct the protein from. The non-coding bits could be products of old, trashed genes, or misplaced bits of genes that have been given broken while chromosomes have been given mis-copied throughout mitosis, or possibly they do purely some thing we have not found out yet (there's a extensive volume we don't understand approximately human biology!) The chromosome is the accumulated genetic counsel regarding the organism, with a lot of genes arranged in some variety of order alongside the form. it incredibly is made out of DNA, meaning that it incredibly is made out of a lot of bases, yet lower back, a lot of those bases at the instant are not (so a methods as all of us understand) area of any particular gene. i could grant you with link, yet you're propably just to boot off commencing with Wiki.

Answer 6

It varies from species to species. The human gene has approx 2.3 billion base pairs.

Answer 7

It varies vastly... some gnens could have as little as a few hundred bp, whereas others could be in the order of millions

Answer 8

3 base pair are in one gene.
this is on an average,it my vary.
genes are a part of DNA.

Answer 9

it depends on the gene