MUTATION

Mutant

Types

Causes

an organism that is different from others of its type because of a permanent change in its genes

Base Subtitution

Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.

Deletion

Insertion

related to genomics, is a type of mutation that involves the addition of one or more nucleotides into a segment of DNA. An insertion can involve the addition of any number of nucleotides, from a single nucleotide to an entire piece of a chromosome.

image

simplest type of gene-level mutation, and they involve the swapping of one nucleotide for another during DNA replication. For example, during replication, a thymine nucleotide might be inserted in place of a guanine nucleotide.

image

type of mutation that involves the loss of one or more nucleotides from a segment of DNA. A deletion can involve the loss of any number of nucleotides, from a single nucleotide to an entire piece of a chromosome. National Human Genome Research Institute.

image

change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection. Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.


click to edit

Mutation of one gene (monogenic).

Mutation of multiple genes (multifactorial inheritance).

Mutation of one or more chromosomes.

Environmental factors (chemical exposure, UV rays) that change your genetic makeup.

image

image