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point mutation: 1 or more bases removed or inserted into dna, cystic fi…

Question

point mutation: 1 or more bases removed or inserted into dna, cystic fibrosis; frameshift mutation: blank; chromosomal mutation: blank

Explanation:

Brief Explanations

First, correct the misassignment and define each mutation type with a matching example:

  1. Point Mutation: A change in a single DNA nucleotide (substitution, not insertion/deletion). Sickle cell anemia is caused by a single base swap in the hemoglobin gene.
  2. Frameshift Mutation: Insertion or deletion of 1+ DNA bases, shifting the reading frame. Cystic fibrosis (in most cases) is caused by a 3-base deletion, which fits this category.
  3. Chromosomal Mutation: Alteration of entire chromosome structure/number. Down syndrome (trisomy 21) is caused by an extra copy of chromosome 21.

Answer:

Mutation TypeDefinitionExample
Frameshift Mutation1+ bases inserted/removed, shifts reading frameCystic Fibrosis
Chromosomal MutationAlteration of chromosome structure/numberDown Syndrome (Trisomy 21)