Types of DNA Mutations
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Questions and Answers

What is the term for a mutation where one or more nucleotide pairs are inserted or deleted from the DNA sequence?

  • Insertion/deletion mutation (correct)
  • Duplication mutation
  • Inversion mutation
  • Translocation mutation

Which type of mutation results in a frameshift by repeating one or more bases in the DNA sequence?

  • Inversion mutation
  • Duplication mutation (correct)
  • Insertion/deletion mutation
  • Translocation mutation

What happens in an inversion mutation?

  • A group of bases rejoin at the same position in reverse order (correct)
  • A frameshift occurs
  • Bases are repeated in the DNA sequence
  • DNA sequence on one chromosome is inserted into another chromosome

Which mutagenic agent is known to cause gene mutations and is found in substances like asbestos?

<p>Benzene (A)</p> Signup and view all the answers

Gene mutations arising spontaneously during DNA replication are primarily due to what?

<p>Spontaneous errors in DNA replication (A)</p> Signup and view all the answers

A mutation that causes no change to the organism can be considered neutral when?

<p>The change occurs in a non-coding region of DNA (B)</p> Signup and view all the answers

How does translocation mutation differ from other types of mutations?

<p>DNA sequences are rearranged between chromosomes (A)</p> Signup and view all the answers

Which type of radiation is known to be a mutagenic agent and can cause gene mutations?

<p>X-ray radiation (D)</p> Signup and view all the answers

What is the effect of a frameshift mutation on the DNA sequence?

<p>Alters the nucleotide sequence after the frameshift point (C)</p> Signup and view all the answers

Which of the following is a causative factor for gene mutations in DNA replication?

<p>Spontaneous errors during replication (B)</p> Signup and view all the answers

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