what-is-codon-bias-why-is-the-observation-of-nonrandom-codon-use-evidence-that-certain-codons-migh-2

Name: what is codon bias why is the observation of nonrandom codon use evidence that certain codons migh 2
Uploaded: 2020-07-27
Duration: 2 min
Channel: Numerade
Description: What is codon bias? Why is the observation of nonrandom codon use evidence that certain codons might be favored by natural selection? If you were given a series of gene sequences from the human genome, how would you determine whether codon usage is random or nonrandom?

Question

What is codon bias? Why is the observation of nonrandom codon use evidence that certain codons might be favored by natural selection? If you were given a series of gene sequences from the human genome, how would you determine whether codon usage is random or nonrandom?

Simon Sauvageau · Accepted Answer

good on bias refers to the non random nature of code on usage, so it&#x27;s a non random selection of code on usage. The fact that there is evidence of non random code on the selection can be used as proof of code owns being favored by natural selection because it shows beneficial code ions being selected for. So there&#x27;s beneficial code owns being selected for in a non random manner in This helps to provide evidence, um, towards natural selection favoring Kogan&#x27;s. If a highly expressed gene is shown from, say, some sort of genome, it is most likely a non random code on bias. So I, lI expressed genes often are going to be related to good on bias and thus non random selection of code on usage. This makes sense because the highly express gene is going to be something that the body is going to be using a lot, such as some sort of protein. And it would make sense that there&#x27;s gonna be a non random selection for that good on usage because it&#x27;s gonna be used so much

Sam Limsuwannarot · Answer

from here asked, Why might there be some bison coat on you such and why they prefer code, owns or not, the saving all organisms. This is because depending on the actual species itself, various codings are going to be more preferable due to various energy consumption usages. And also it&#x27;s a redundancy within the actual nucleotide or genomic code itself. So based on this, it could actually have a difference in what type of code on is gonna be used, especially given if the complex, the organism, rather is gonna be more complex.

Sohini Lahiri · Answer

Hello. So today we&#x27;re going to be discussing problem number 27. What is a code on what is the gene and what is a chromosome? So the thing to keep in mind is that from smallest to largest, we go code on then Gene, and then chromosome is the largest and each of these air contained within each other. So what? What do I mean by that? Chromosome is made up of James. Jeans are made up of code owns like so, but let&#x27;s talk about what each of them are. So a code on is a sequence of three bases that code for an amino acid. So if we look right here, here is a coat on, and it&#x27;s made up of the three bases. Adenine you&#x27;re still and Guan e code onto again, made up of three basis at a zine. Cytosine guanine. Okay, moving on to Gene&#x27;s A gene is a distinct stretch of DNA that determines something about what you are. So they convey Aryan size with just a few 1000 pairs of nucleotides, or over two million of these base pairs. And then what is a chromosome? A chroma zone is a large strand of DNA, and it&#x27;s made up of multiple genes, so a gene is always smaller than its host chromosome. But all of these chromosomes are not necessarily the same length. So again, in order of size, it goes code on, which is the smallest, then Gene and then chromosome. I hope that helped.

Rashmi Sinha · Answer

Gordon is gone. Some training your types get their faces, hatred pieces, each garden good for one minute since it in our

John Barone · Answer

asking for sort of a definition of a stop go down. So remember, when we&#x27;re talking about co dons we&#x27;re talking about triplets or groups of three are in a bases or nuclear times we&#x27;re thinking of three are in a pieces and remember that we have the genetic code and the genetic code tells us what each coat on codes four. So the genetic code tells us, for example, that if you have three bases in an R in a molecule that are a A in A, that will lead to the addition of a licensing of you know acid when you&#x27;re making the poly peptide. So this is the R and A and IT codes for the condition of the life seen when you&#x27;re, um, making your poly prep time. So, um, what are stopped code on? So stop Koda is simply a code on that doesn&#x27;t code for an amino acid, but instead it codes Ah, for a stop. It tells the Rambus home that it needs to end, so so they don&#x27;t code for, you know, essence. But instead it means to the stop or honking of translation. So when Nobre Masoum hits us a stop code on in an m r and A. It will stop translation. And that&#x27;s the end of the production of the poly peptide with a messy poly prep time. Remember that there are three stock Odoms there. You a a Yeah, A G and you tree. Okay. All right. So stop code owns, stopped the translation, and they represent this or stop signal eating the end of the production of the polygraph.

Ali Crampton · Answer

in this question, we&#x27;re answering widely. Any rhythms DNA sequence would expect to find a stock code on at every 20 or so coat ons. So remember that there are 64 code ons and three of these are stopped coat on. So in a random sequence, you would expect each of these code ons to occur with equal frequency. So to find any one of these stop code ons that would occur every 64/3 times, which is equal to 21.3, which is about equal to 20 or 21 Cohen&#x27;s.

Problem

Genomes contain coding regions and noncoding sequ…

Problem 9 Hard Difficulty

What is codon bias? Why is the observation of nonrandom codon use evidence that certain codons might be favored by natural selection? If you were given a series of gene sequences from the human genome, how would you determine whether codon usage is random or nonrandom?

Answer

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