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marshall27 [118]
3 years ago
14

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

Biology
1 answer:
KiRa [710]3 years ago
5 0

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).
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