Question

What is missing from the following list of the main types of chromosomal mutations?
Deletion
?
Translocation
Duplication


1) Insertion

2) Addition

3) Substitution

4) Inversion

Answer 1

i think it is inversion?
am i right?

Answer 2

addition and inversions are chromosomal mutations

Answer 3

`Translocation:` The joining of a fragmented chromosome to a non-homologous chromosome is a translocation.

`Deletion:` This mutation results from the breakage of a chromosome in which the genetic material becomes lost during cell division.

`Duplication:` Duplications are produced when extra copies of genes are generated on a chromosome.

`Inversion:` In an inversion, the broken chromosome segment is reversed and inserted back into the chromosome.

`Isochromosome:` This type of chromosome is produced by the improper division of the centromere. Isochromosomes contain either two short arms or two long arms. A typical chromosome contains one short arm and one long arm.