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Nucleotides in the coding region of DNA are transcribed into mRNA.
mRNA, in turn, is translated into a polypeptide via the ribosome.
Three (3) nucleotides correspond to one amino acid. In other words, if the nucleotides in question are AAA, those nucleotides will be transcribed into their mRNA complement, UUU, which in turn will be translated into the amino acid phenylalanine via the ribosome.
Now, if you remove one of those nucleotides, say the first A of the AAA, everything gets screwed up. You get what is caused a frameshift. Say originally you had AAAUAG. As I mentioned, AAA would eventually become phenylalanine, and UAG is a stop codon, which would tell the ribosome to stop translating: the polypeptide is complete. But if the first A of the AAA is removed -- the ribosome still wants to read in threes! So it will read AAU, and code asparagine instead of phenylalanine, and moreover . .. it will keep translating making a polypeptide much longer than evolution intended!
Insertion or deletion of amino acids in a polypeptide chain can disrupt the reading frame, leading to a shift in the codons and potentially producing a completely different amino acid sequence. This can result in a nonfunctional or misfolded protein, leading to loss of function or disease.
Polypeptide chains are formed by reading DNA base sequences in groups of three.
If one of the bases of DNA is deleted than all of the bases are shifted down one and the polypeptide chain is radically different because every group after the deletion is now different.
If an entire group is deleted it has less of an effect and sometimes no effect at all depending on how important the group was.
For insertion it is very similar. If one base is added then all the bases after it are shifted up on and all the groups after the insertion are different.
If a whole group is added (very unlikely in the natural world, only really happens in a lab) then the effect can be small or none at all.
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What mutations would be considered frameshift mutations?
Frameshift mutations occur when nucleotides are inserted or deleted from the DNA sequence, causing a shift in the reading frame. This results in a change in the amino acid sequence downstream of the mutation. Frameshift mutations can have significant effects on the protein produced, often leading to a nonfunctional or truncated protein.
Is polypeptide an amino acid?
No, a polypeptide is not an amino acid. A polypeptide is a chain of amino acids linked together by peptide bonds. Amino acids are the building blocks of proteins and are the individual units that make up a polypeptide chain.
A long chain of many amino acids is called a?
Polypeptides are chains of amino acids linked by peptide bonds.
What do you call a chain of 25 amino acids?
a chain of 25 amino acids can be called a peptide chain ---------------------------------------------------------------------------------- Two or united amino acids form a *dipeptide* Three a *tripeptide* Ten or more a *polypeptide* More than 50 *protine* Therefore a chain of 25 amino acids is a polypeptide :D
What nucleic acid where polypeptide chain is produced?
Polypeptide chains are produced using messenger RNA (mRNA) as a template during the process of protein synthesis. The mRNA carries the code for the sequence of amino acids that make up the polypeptide chain.
What chain is sequences of amino acids that is the foundation for the basic structure of a protein?
polypeptide chain
Caused by the insertion or deletion of nucleotides in DNA?
Insertion or deletion of nucleotides in DNA can lead to frameshift mutations, in which the reading frame is altered. This can result in a completely different protein being produced, leading to potential changes in the organism's function or traits.
Is polypeptide chain a carbohydrate protein or lipid?
A polypeptide chain is a chain of amino acids, which make up proteins
What is another name for a protein chain?
the answer would be.... polypeptide
What mutations would be considered frameshift mutations?
Frameshift mutations occur when nucleotides are inserted or deleted from the DNA sequence, causing a shift in the reading frame. This results in a change in the amino acid sequence downstream of the mutation. Frameshift mutations can have significant effects on the protein produced, often leading to a nonfunctional or truncated protein.
What chain is a sequence of amino acids that is the foundation for the basic structure of a protein?
A polypeptide chain is a sequence of amino acids that forms the primary structure of a protein. This chain is held together by peptide bonds between adjacent amino acids.
Is polypeptide an amino acid?
No, a polypeptide is not an amino acid. A polypeptide is a chain of amino acids linked together by peptide bonds. Amino acids are the building blocks of proteins and are the individual units that make up a polypeptide chain.
What is the name given to the protein molecule when is consists of a basic polypeptide chain?
The protein molecule is called a polypeptide when it consists of a basic chain of amino acids. A polypeptide chain folds into a specific 3D structure to become a functional protein.
A long chain of many amino acids is called a?
Polypeptides are chains of amino acids linked by peptide bonds.
Is a protein a polypeptide?
A polypeptide chain is made up amino acids that form from a peptide bond. The polypeptide chain makes up a protein; therefore, the type of protein is contingent on the number of chains present.
What do you call a chain of 25 amino acids?
a chain of 25 amino acids can be called a peptide chain ---------------------------------------------------------------------------------- Two or united amino acids form a *dipeptide* Three a *tripeptide* Ten or more a *polypeptide* More than 50 *protine* Therefore a chain of 25 amino acids is a polypeptide :D
What makes a polypeptide chain?
A polypeptide chain is a chain of amino acids linked together by peptide bonds. The sequence of amino acids determines the structure and function of the protein formed by the chain.
