Mutations Flashcards
Change in the base sequence of DNA that can affect the structure and function of proteins when they occur with the gene
Mutation
Permanent change in the DNA sequence that makes up a gene
Genetic Mutations
Occurs at the chromosomal level resulting in gene alterations
Chromosomal Mutations
Changes to one base in the DNA code
Point Mutations
When a base pair is replaced by another pair from the sequence
Substitution
When a new base is inserted from the sequence
Insertion
When a base pair is deleted from the sequence
Deletion
Chromosome segment is deleted or lost
Deletion
Doubling of chromosome segment
Duplication
Chromosome segment is inverted
Inversion
Additional of one or more segment or base
Insertion
A segment from one chromosome is transferred to another chromosome
Translocation
Deletion or insertion of a base may change the reading frame of the codon
Frameshift mutation
A thread like structure, which DNA is tightly packaged within nucleus
Chromosomes
An individual’s complete set of chromosomes
Karyotype