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Does changing the sequence of nucleotides always result in a change in the sequence of amino acids?
Wiki User
∙ 8y ago
This is actually false. DNA strands that codes for amino acids do so using 3 nucleic acids to encode an amino acid. Since there are 4 nucleic acids with 3 positions each, there are 64 possible nucleic acid "words". There are only 20 amino acids that are directly coded by these 3-nucleic-acid-words. All 64 "words" are valid. but the number of nucleic acid "spellings" that code for a particular amino acid varies from 1 to 6. There are many mutations where one or more changes to a nucleic acid sequence will not change the protein being made; so long as the changes are simply different "spellings" of the same amino acid. A statistical example: There are around 57,000 different "spellings" of the first 10 amino acids in human serum albumin that will produce the protein correctly.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoAlmost always yes but different sequences of nucleotides can sometimes result in the same or correct amino acid being transcribed. However, this different sequence does not encode for that same amino acid. The difference sequence can conserve the amino acid by wobble base pairing. Sequences can also be conserved by 3rd base degeneracy. An example: the codon GGX, where X can be any amino acid, will always code for glycine and UCX will always code for serine.
Wiki User
∙ 8y agoThis does not always happen Since you only have 20 nucleotides, but 64 combinations of codons(the set of 3 nucleotides) Several amino acids have several codons that will work.
see also site presenting Visualization invented in 2015 by Polish scientist Gregory Podgorniak -
studia.scienceontheweb.net/visualization.php
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How a change in the sequence of nucleotides in a strand of DNA might cause a protein to malfunction?
The sequence of nucleotides is altered and therefore, the amino acid that is to be added to the peptide chain will be altered. hence the protein will be different. This protein can be functionless (will be degraded). If it turns out to be toxic, then there may be symptoms.
How does the sequence of DNA affect the function of a protein?
The sequence of nucleotides in DNA molecule is equivalent and is closely related to an amino acid sequence in the protein molecule. If for any reason the sequence of DNA nucleotides changes it will be reflected in amino acid sequence in the protein. Moreover, the correct sequence of amino acid in the protein will form the correct three-dimensional structure, or tertiary structure, that will confer the biological activity to protein. If a wrong amino acid is translated from a mutated gene in the DNA could change the spatial structure of the protein and therefore modify or erase its biological function.
What part of the nucleotides changes?
The sugar and phosphate group of nucleotides never change. There are four possible nitrogenous bases and thus it is the only part of nucleotides that can change.
What does a DNA molecule look like with a mutation?
A mutation is a change in the sequence of nucleotides that make up DNA. Changes can cause a change in phenotype when they change a gene or regulatory sequence, but can be silent mutations when a stretch of so called 'junk DNA' is affected. A mutation can be either a spontaneous occurrence or induced by environmental factors such as free radicals / ionising radiation. Mutation is considered to be the driving force behind evolution, regardless of where it all originates from: evolution (change) through mutation is a fact.
Does changing the number of neutrons affect what type of element it is?
No. You have to change the number of protrons.(Changing the number of neutrons changes the isotope of the element, but it is still the same element. However, changing the number of neutrons will often result in instability, causing a radioactive decay sequence, which often results in a change in element.)
A change in a sequence of DNA is called?
Any change in the sequence of DNA nucleotides is called mutation.
What can occur as a result of a change in the sequence of nucleotides in a strand of DNA?
The addition or deletion of a nucleotide can lead to a Frameshift mutation. The Frameshift mutation causes a "shift" in the reading frame of the codons in the mRNA. This may lead to the change in the amino acid sequence at protein translation.
What is any change in the sequence of DNA nucleotides called?
A change in the nucleotide sequence of DNA is called a mutation.Mutations take several forms:* substitution: one base is replaced by another* deletion: one or more nucleotides disappear from the sequence and the rest close up* insertion: one or more nucleotides appear between what had been adjacent nucleotides* duplication: a form of insertion in which a sequence of nucleotides is copied and now appears twice instead of once. Mutations can be caused by certain types of radiation, including ultraviolet (UV), and certain chemical compounds, which are therefore referred to as mutagenic.Mutations are particularly likely to occur at a point during replication of DNA when the two strands are separated.
How a change in the sequence of nucleotides in a strand of DNA might cause a protein to malfunction?
The sequence of nucleotides is altered and therefore, the amino acid that is to be added to the peptide chain will be altered. hence the protein will be different. This protein can be functionless (will be degraded). If it turns out to be toxic, then there may be symptoms.
What is the change in the nucleotide sequence of DNA is called?
A change in the nucleotide sequence of DNA is called a mutation.Mutations take several forms:* substitution: one base is replaced by another* deletion: one or more nucleotides disappear from the sequence and the rest close up* insertion: one or more nucleotides appear between what had been adjacent nucleotides* duplication: a form of insertion in which a sequence of nucleotides is copied and now appears twice instead of once. Mutations can be caused by certain types of radiation, including ultraviolet (UV), and certain chemical compounds, which are therefore referred to as mutagenic.Mutations are particularly likely to occur at a point during replication of DNA when the two strands are separated.
Would all mutations to DNA happen to a gene?
all mutations in terms of DNA happen in a gene. here it has to be noted that a gene is made up of two strands of nucleotides which are made up of amino acids. when mutations occur the sequence of nucleotides may change. sometimes a nucleotide may become missing hence the sequence of the strands change. mutations can be harmful but also very beneficial.
How does the sequence of DNA affect the function of a protein?
The sequence of nucleotides in DNA molecule is equivalent and is closely related to an amino acid sequence in the protein molecule. If for any reason the sequence of DNA nucleotides changes it will be reflected in amino acid sequence in the protein. Moreover, the correct sequence of amino acid in the protein will form the correct three-dimensional structure, or tertiary structure, that will confer the biological activity to protein. If a wrong amino acid is translated from a mutated gene in the DNA could change the spatial structure of the protein and therefore modify or erase its biological function.
What does a DNA molecule look like with a mutation?
A mutation is a change in the sequence of nucleotides that make up DNA. Changes can cause a change in phenotype when they change a gene or regulatory sequence, but can be silent mutations when a stretch of so called 'junk DNA' is affected. A mutation can be either a spontaneous occurrence or induced by environmental factors such as free radicals / ionising radiation. Mutation is considered to be the driving force behind evolution, regardless of where it all originates from: evolution (change) through mutation is a fact.
What part of the nucleotides changes?
The sugar and phosphate group of nucleotides never change. There are four possible nitrogenous bases and thus it is the only part of nucleotides that can change.
Why will the big dipper change in shape?
the universe is always changing
What is this states that earth is always changing and the same force of change at work today were at work in the past?
States the Earth is always changing, and the same forces of change at work today were at work in the past
Why cultures change?
People are always changing. Things that are considered abnormal can change to normal. Or reverse that. Gestures and things people do for fun change, like fashion how something can be 'in' or 'out.' Culture is always changing like humans. It changes with our behavior.
