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7630110
Mutation
Description
Changes in genes or chromosomes that may produce a new trait that can be inherited
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changes in genes or chromosomes that may produce a new trait that can be inherited
Mind Map by
Awangko Jamaluddin
, updated more than 1 year ago
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Created by
Awangko Jamaluddin
over 7 years ago
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Resource summary
Mutation
Gene Mutation
Duplication
Occur when any number of nucleotides are copied and then inserted into original nucleotide sequence thus increase the size of normal DNA sequence.
Inversion
Reversal of a portion of a nucleotide sequence.
Deletion
Loss of a nucleotide from original base cause reducing the size of the DNA sequence.
Insertion
Insertion or deletion of base pair in DNA sequence cause frameshift mutation.
Substitution
Missense
Code for a different amino acid that affect the activity of the protein.
Silence
The substitution not change the amino acid ( no effect)
Nonsense
Cause stop codon and will alter the function of the gene product.
One nucleotide replaced with another nucleotide.
Chromosomal Mutation
Chromosomal Abberation
Translocation
Intrachromosomal
Within the chromosomes
Interchromosomal
Between chromosomes
Movement of part of a chromosome to another part
Deletion
Loss of chromosomal fragment that contain certain genes.
Inversion
Paracentric (Not include centromere)
Pericentric (Include centromere)
Change of direction of a chromosomal segment
Duplication
The doubling of one or several chromosomal fragments
Alteration of Chromosomal Number
Aneuploidy
Extra or missing of one or more number of chromosome in normal set of individual (2n+1, 2n+2, 2n-1, 2n-2 etc)
Euploidy
Due to duplication of normal set of chromosome (3n, 4n, 5n etc)
Changes in genes or chromosomes that may produce a new trait that can be inherited
Causes
Induced mutation
Mutagen, substances cause a higher rate of mutation.
Spontaneous mutation
Low level natural mutagens
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