Answer:
- B. substitution
- C. point mutation
- F. translocation
- A. mutation
- H. duplication
- G. inversion
- D. frameshift mutation
- E. insertion
Explanation:
Mutation:
A mutation is a change or alteration of the sequence of nucleotides in the DNA.
Mutations are of various types. Two of the major types are:
- Point mutations
- Chromosomal aberrations.
- Point mutations are changes in one or two or a few nucleotides of DNA. Point mutations are further of various types:
- Substitutions are exchanges of one nucleotide with another. Substitutions are also of three types: nonsense (codon changes to stop codon), missense (codon codes for a different amino acid) and silent mutations (codon codes for the same amino acid).
- Insertions/deletions are the addition or removal of one or a few nucleotides. Frameshift mutations alter the DNA reading frame, changing all the consequent amino acids.
- Chromosomal aberrations constitute translocations (part of one chromosome attaches to another), inversions (the orientation of the chromosome is altered), insertions (duplication or insertion of multiple copies of a chromosomal segment) and deletions (deletion of a chromosomal segment).
