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Mutations (Grade 10)

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Mutations

1. 
What is the term for a heritable change in genetic information?
  1. mutation
  2. mitosis
  3. meiosis
  4. apoptosis
 
2. 
What type of mutation has occurred if the original sequence of DNA is CCC but is now CCA?
  1. frameshift mutation
  2. deletion mutation
  3. insertion mutation
  4. substitution mutation
3. 
What is a mutagen?
  1. A random change in the genetic sequence.
  2. A chemical or physical agent that causes a change in the genetic sequence.
  3. A method of manipulating DNA to make a change in the genetic sequence.
  4. A heritable factor that causes a large change in the genetic sequence.
 
4. 
What kind of mutation has occurred if the original sequence of nitrogen bases was CCGGTAC and the new sequence is CCGGTTAC?
  1. a deletion mutation
  2. a duplication mutation
  3. an inversion mutation
  4. a translocation mutation
5. 
What happens during an inversion mutation?
  1. A base or sequence of bases on the DNA strand is removed.
  2. Two or more nitrogen bases are moved from one part of the strand to another.
  3. One nitrogen base changes location with an adjacent nitrogen base.
  4. Several nitrogen bases appear more frequently than on the original strand.
 
6. 
What is an advantage of polyploidy in plants?



7. 
If a strand of DNA originally read TTACTCGG and after a mutation it read ACTTACTCGGTA, what type of mutation has occurred?
  1. a translocation
  2. an inversion
  3. a duplication
  4. a deletion
 
8. 
All mutations result in negative effects on the organism.
  1. True
  2. False
9. 
A gene mutation that involves the changes to one of a few nucleotides is known as a                  mutation.
 
10. 
What is an example of a harmful mutation involving human blood?



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