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Does changing the sequence of nucleotides always result in a change in the sequence of amino acids?
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.
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A change in which part of a gene is the result of a mutation?
A mutation can result in a change in the DNA sequence of a gene. This can involve a substitution of one nucleotide for another, an insertion or deletion of nucleotides, or rearrangement of the existing nucleotides. These changes can alter the protein produced by the gene and may lead to genetic disorders or other consequences.
Which demonstrates an insertion mutation of the sequence 5' GGGCCCAAA 3'?
An insertion mutation of the sequence 5' GGGCCCAAA 3' could involve adding one or more nucleotides into the original sequence. For example, if we insert an "X" between the second and third nucleotides, the mutated sequence would be 5' GGXGCCCAAA 3'. This change alters the original sequence and can potentially affect the resulting protein if this DNA sequence is part of a coding region.
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.
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 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.
A change in which part of a gene is the result of a mutation?
A mutation can result in a change in the DNA sequence of a gene. This can involve a substitution of one nucleotide for another, an insertion or deletion of nucleotides, or rearrangement of the existing nucleotides. These changes can alter the protein produced by the gene and may lead to genetic disorders or other consequences.
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.
A change in a sequence of DNA is called?
Any change in the sequence of DNA nucleotides is called mutation.
Chemical q causes the following change in the sequences of nucleotides?
Chemical q induces a mutation in the DNA sequence, leading to a change in the order or composition of nucleotides. This alteration can result in various effects, such as a change in protein structure and function, potential genetic disorders, or even cell death depending on the specific sequence affected. Further investigation and analysis would be needed to determine the precise impact of this mutation.
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.
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.
Why will the big dipper change in shape?
the universe is always changing
Can a point mutation be frameshift mutation?
No
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.
