Topic 2: Knowledge Check Answers
1. In base-pair substitution mutation, single base nucleotide is replaced by another nucleotide.
Correct answer: A. True
2. Frame shift mutation, resulted to shift or change of entire DNA or amino acid sequence by:
Correct answer: C. addition or deletion of nucleotide in the DNA.
3. What is monosomy?
Correct answer: B. single missing chromosome from diploid set.
4. What are the structural changes in chromosomes caused by toxicants?
Correct answer: E. All of the above.
5. Micronuclei (MN) changes are the damaged chromosome fragments or whole chromosomes that were not incorporated into the cell nucleus and stayed as the extra-nuclear bodies after the cell division.
Correct answer: A. True
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