TLS Online TPP Program

#Question id: 7762


Correlation between life span and the ability of fibroblasts to repair DNA in various mammalian species, Repair capacity is represented in autoradiography by the number of grains from radioactive thymidine per cell nucleus. According to graph, which factor exist on x-axis ? Note that the y-axis (life span) is logarithmic.

#I Life Science/ Life Sciences Group – I-V
  1. DNA repair enzymes
  2. Rate of frameshift mutation
  3. Rate of nonsense mutation
  4. a and c both