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4 marksCell Structure and Functions

CAPE Biology Unit 1 · 2003 · Paper 2 · Question 4(c)(ii)

A species of toad may produce eggs which are unable to form nucleoli. Discuss the outcome of this deficiency on the function of

Discuss the outcome of this deficiency on the function of mitochondrial ribosomes.

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  1. 4(a)State briefly what is meant by the primary, secondary, tertiary and quaternary structure of proteins. Exemplify EACH answer by reference to the protein…[10 marks]
  2. 4(b)The structure of collagen confers special properties which reflect its distribution in the body. Comment on this statement.[6 marks]
  3. 4(c)Discuss the outcome of this deficiency on the function of cellular ribosomes.[4 marks]

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