HEREDITY
MUTATIONS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Deletion
|
|
|
Inversion
|
|
|
Translocation
|
|
|
Frameshift
|
|
|
Duplication
|
Detailed explanation-1: -As mentioned above, the four types of Chromosomal Mutations I are inversion, deletion, duplication/amplification, and translocation.
Detailed explanation-2: -The four main types of structural chromosomal aberrations are deletion, duplication, inversion, and translocation.
Detailed explanation-3: -Duplication, as related to genomics, refers to a type of mutation in which one or more copies of a DNA segment (which can be as small as a few bases or as large as a major chromosomal region) is produced. Duplications occur in all organisms.
Detailed explanation-4: -Gene duplication can occur by several mechanisms, including whole-genome duplication (WGD) and single gene duplication. Single gene duplication includes four types, tandem (TD), proximal (PD), retrotransposed (RD), DNA-transposed (DD) and dispersed duplication (DSD) (Freeling, 2009; Hahn, 2009; Wang et al., 2012b).
Detailed explanation-5: -There are 5 types of chromosomal alterations: deletions, duplications, insertions, inversions, and translocations. Point mutations occur at a single site within the DNA; examples of these include silent mutations, missense mutations, and nonsense mutations.