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Question 17Different genes have different spontaneous mutationrates.Question 18Which of the following is true about cancer cells?They are dedifferentiatedQuestion 19A mutation is an altered DNA sequence in an organism.Question 20Which of the following is true about the triplet code?3 out of 3 points3 out of 3 points3 out of 3 points3 out of 3 points0 out of 3 points
Question 21Splice site mutations can cause mutation by which ofthe following mechanisms?Question 22Mutation can affect any part of the genome.Question 23The genetic mutation which causes sickle cell disease isa change in one amino acid of hemoglobin and is basedon one nucleotide mutational change (point mutation).Question 24HER2 breast cancer affects hundreds of thousands ofwomen each year. A drug called Herceptin has been aneffective cure for this type of breast cancer. Herceptin isa;Question 25Which of the following are sources of potential mutationare found in our typical human environments?0 out of 3 points3 out of 3 points0 out of 3 points3 out of 3 points0 out of 3 points