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4 marksStructure and Roles of Nucleic Acids

CAPE Biology Unit 1 · 2014 · Paper 2 · Question 2(a)(i)

Protein synthesis requires two steps, transcription and translation. Table 1 is an incomplete comparison of some features of transcription and translation in eukaryotes. Complete Table 1 by writing the correct answers in the relevant spaces in the table.

Complete Table 1 by writing the correct answers in the relevant spaces in the table.

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  1. 2(a)(ii)In the box labelled A in Figure 2, sketch a diagrammatic representation of the tRNA molecule carrying the next amino acid to be added to the growing…[3 marks]
  2. 2(b)(i)Briefly explain the nature of the relationship between the alleles in the AB blood group.[2 marks]
  3. 2(b)(ii)a)Deduce the blood genotype of the accused male which will clearly prove that he is NOT the father of the child. Give a brief explanation to justify your answer.…[3 marks]
  4. 2(b)(ii)b)If the male parent in (b) (ii) a) above has blood type B, demonstrate the inheritance of the blood type (O) of the child. Use the given symbols and a Punnett…[3 marks]

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