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Mutation - Coggle Diagram
Mutation
Chromosomal mutation
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Duplication
A chromosomal segment is repeated, increasing the concentration of the genes in that area.
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Deletion
When a chromosome segment is lost, all the genes in that segment are also gone.
Point Mutation
Substitution
During replication, one base is inserted incorrectly, replacing the pair at the appropriate location on the complementary strand.
Insertion
In replicating DNA, one or more additional nucleotides are added, frequently causing a frameshift.
Deletion
During replication, one or more nucleotides may be “skipped” or removed, which usually causes a frameshift.
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Causes
Internal
During cell division, the DNA makes a copy of its own. Sometimes, the copy of the DNA is not perfect and is different from the original DNA.
External
When chemicals or radiation meets with DNA, it causes the DNA to break down. The ultraviolet radiations cause the thymine dimers to break resulting in a mutated DNA.
Effects
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Negative
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Mutation can lead to cancer,
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