Question

Please help me with this I don’t understand this and google ain’t helpin

Answer 1

Answer:

1. B. substitution
2. C. point mutation
3. F. translocation
4. A. mutation
5. H. duplication
6. G. inversion
7. D. frameshift mutation
8. 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:

1. Point mutations
2. Chromosomal aberrations.

• Point mutations are changes in one or two or a few nucleotides of DNA. Point mutations are further of various types:

1. 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).
2. 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).