#Question id: 3775
#Section 3: Genetics, Cellular and Molecular Biology
What are telomeres?
#Question id: 3776
#Section 3: Genetics, Cellular and Molecular Biology
Telomere shortening puts a limit on the number of times a cell can divide. Research has shown that telomerase can extend the life span of cultured human cells. How might adding telomerase affect cellular aging?
#Question id: 3778
#Section 3: Genetics, Cellular and Molecular Biology
Which of the following effects might be caused by reduced or very little active telomerase activity?
#Question id: 3779
#Section 3: Genetics, Cellular and Molecular Biology
In a healthy eukaryotic cell, the rate of DNA repair is typically equal to the rate of DNA mutation. When the rate of repair lags behind the rate of mutation, what is a possible fate of the cell?
#Question id: 3780
#Section 3: Genetics, Cellular and Molecular Biology
If a cell were unable to produce histone proteins, which of the following results would be a likely effect on the cell?
#Question id: 3781
#Section 3: Genetics, Cellular and Molecular Biology
Hershey and Chase used a DNA-based virus for their work. How might the results have been different if they had used an RNA virus?