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No. Since a mutation in the DNA may not necessarily result in a change to the encoded amino acid in the protein sequence, it is entirely possible.
Further, the protein function will likely not change when an amino acid is replaced with one of similar chemical properties. Sometimes it does, sometimes it doesn't. This is the field that molecular evolutionary biologists study.
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Primary protein structure is dependent on?
Primary protein structure is the order of amino acids that compose the protein and their arrangement into 2 dimensional structures like sheets or helixes is secondary. Tertiary structure is the mixed composition of secondary forms to make a three dimension protein and quaternary structure is how the protein becomes part of a functional unit like hemoglobin inside of a blood molecule.
Why can missenes mutations not have an effect on protein function?
Say the part of the gene that is mutated does not change the amino acid sequence of the protein made through the mRNA; hydrophobic amino acid stays hydrophobic. We have many of these small nucleotide polymorphisms in our genomes and they are useful trackers of human migrations, for instance.
What causes mutations during the process of protein synthesis?
Mutations during protein synthesis can be caused by errors in DNA replication, exposure to mutagens like radiation or chemicals, or spontaneous changes in the genetic code. These mutations can alter the sequence of amino acids in a protein, potentially affecting its structure and function.
Mutations that cause dramatic changes in protein structure are often?
Mutations that cause dramatic changes in protein structure are often deleterious and can lead to dysfunctional or nonfunctional proteins. These mutations can disrupt the overall folding, stability, and function of the protein, resulting in a loss of its normal biological activity or causing harmful effects on the organism.
What are examples of mutations and describe the consequences?
Examples of mutations include point mutations (substitution, insertion, deletion), chromosomal mutations (duplication, deletion, inversion, translocation), and silent mutations. These mutations can lead to various consequences such as changes in protein structure and function, genetic disorders, and cancer.
How do frameshift mutations impact the structure and function of proteins?
Frameshift mutations occur when nucleotides are inserted or deleted from a gene sequence, causing a shift in the reading frame during protein synthesis. This results in a completely different amino acid sequence being produced, leading to a non-functional or altered protein structure. As a result, frameshift mutations can significantly impact the structure and function of proteins, potentially causing genetic disorders or diseases.
How does deletion mutation affect the structure and function of proteins?
Deletion mutations can cause a shift in the reading frame of a gene, leading to the loss of one or more amino acids in the protein sequence. This can result in a non-functional or altered protein structure, affecting its function.
Why are insertions and deletions called frameshift mutations?
Insertions and deletions are called frameshift mutations because they shift the reading frame of the genetic code during protein synthesis, leading to a change in the sequence of amino acids in the resulting protein. This can have significant effects on the structure and function of the protein.
How do frameshift mutations affect the structure and function of proteins?
Frameshift mutations occur when nucleotides are inserted or deleted from a gene sequence, causing a shift in the reading frame during protein synthesis. This can lead to a completely different amino acid sequence being produced, resulting in a non-functional or altered protein structure. As a result, frameshift mutations can disrupt the normal function of proteins and potentially lead to genetic disorders or diseases.
What is truncation mutation?
Truncation mutation is a type of mutation that results in the premature termination of the protein synthesis process. This leads to the production of a truncated or incomplete protein which may be nonfunctional. Truncation mutations can have serious consequences on the structure and function of the protein.
How can mutations affect protein synthesis in cells What is the result?
Mutations can result in changes to the DNA sequence, leading to changes in the mRNA sequence during transcription. This can cause changes in the amino acid sequence during translation, potentially altering the structure and function of the resulting protein. The result can be a dysfunctional or altered protein, affecting the cell's ability to carry out its normal functions.
What is an aberrant protein?
An aberrant protein is a protein that deviates from its normal structure or function due to mutations or errors in the genetic code. These abnormal proteins can lead to various diseases and health conditions.
