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14 Cards in this Set
- Front
- Back
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What is a a mutation? |
a permanent change that occurs in a cells DNA |
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What is point mutation? What what can it cause? |
a chemical change in just one base pair It can cause a genetic disorder |
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What are somatic cells? |
cells that only affects your cells |
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What are gamete mutations |
Affects the child (passed on to the offspring) |
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3 causes of mutations |
Can occur spontaneously Caused by radiation X-rays and gamma rays |
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What are mutagens? |
Chemicals that can change the chemical structure of nucleotide bases |
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What is deletion? |
The deletion of nucleotides to the DNA sequence |
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What is insertion? |
The addition of nucleotides to the DNA sequence sequence |
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What is expanding mutation (tandem repeats) |
An increase in the number of copies of repeated codons codons |
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What can expanding mutation ( tandem repeats ) cause |
Genetic disorders |
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What is substitutions? |
When one base is exchanged for another |
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What is missense? |
The DNA code is altred and codes for the wrong amino acid |
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What is nonsense? |
Cause translation (making of a protein) to terminate early |
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What is frameshift mutation? |
Changes the multiples of three codons from the point of insertion or deletion |
