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