Genetics: Analysis and Principles 5th Edition by Robert Brooker

تمرين 56

With regard to Chargaff's experiment described in Figure 9.13, answer the following:
a. What is the purpose of paper chromatography
B. Explain why it is necessary to remove the bases in order to determine the base composition of DNA
c. Would Chargaff's experiments have been convincing if they had been done on only one species Discuss.FIGURE 9.13 An analysis of base composition among different DNA samples. Starting material: The following types of cells were obtained: Escherichia coli , Streptococcus pneumoniae , yeast, turtle red blood cells, salmon sperm cells, chicken red blood cells, and human liver cells.