A-LevelBiologyNucleic acids and protein synthesisOct/Nov 2010Paper 1 Q191 Mark
The table shows the percentages of bases in DNA from various types of cell. [Table showing percentages of adenine, guanine, thymine, cytosine for calf thymus, bull spleen, bull sperm, rat bone marrow, yeast] What is a valid deduction from these data?
AAll cells from the same species have approximately the same content of DNA.
BSmall differences in DNA from different cells have large effects.
CThe four bases show complementary base pairing.
DThe structure of DNA is different in yeast and animal cells.
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The correct answer is C. This question tests the candidate's understanding of nucleic acids and protein synthesis within the Biologysyllabus. The examiner's mark scheme requires...
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