There are a few mutations caused by entire chromosome changes. The times the number of chromosome can change can occur when the duplicated chromosomes pull apart and then produce a cell missing a chromosome or having an additional one.
For example, XO or XXX or XXY. These are the sex chromosomes where XO means that either the second X is missing, or the Y is missing. Normal would be XX (female) or XY (male). These individuals are able to live with these added or deleted genes. All other missing or additional chromosomes are not compatible with life.
i] spontaneous mutation ii] induced mutation iii] germinal mutation iv] somatic mutation v] chromosomal mutation vi] gene mutation are the some of the major types of mutation......
gene mutation, chromosomal abberations
nonsense mutation, missense mutation, frameshift muation, deletion or addition mutation
From another angle: beneficial and detrimental.
insertion and deletion
Frameshift
genes
Four types of chromosomal mutations are Down syndrome (which is a mutation in which there are three copies of chromosome 21), Kinefelter Syndrome (which is a mutation in which a male has an extra X-chromosome), Turner Syndrome (which is a mutation in which a female is missing an X-chromosome), and Patau Syndrome (which is a mutation in which there are three copies of chromosome 13).
The three different types of mutation are substitution, insertion, and deletion. They differ because deletion is missing a base, insertion has a base that was added, and substitution has a base that has been replaced.
Four types of chromosomal mutations are Down syndrome (which is a mutation in which there are three copies of chromosome 21), Kinefelter Syndrome (which is a mutation in which a male has an extra X-chromosome), Turner Syndrome (which is a mutation in which a female is missing an X-chromosome), and Patau Syndrome (which is a mutation in which there are three copies of chromosome 13).
A point mutation is when 1 base pair is swapped out for another one... so instead of an A you might find a C... or T... or G. Also an insertion or deletion of a base pair A mutation of a single point :)
A mutation in a DNA molecule is passed to offspring only when the mutation occurs in a germ cell, such as an egg or sperm cell. Mutations in other types of cells, like skin cells, do not get passed on to offspring.