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2 marksCell Division and Variation

CAPE Biology Unit 1 · 2010 · Paper 2 · Question 5(a)(ii)

This question is about genetic variation and mutations.

Define 'mutation' and state in which cells of the organism mutations occur.

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  1. 5(a)(i)Sexual reproduction greatly increases the genetic variation in a population. Define 'genetic variation' and describe TWO sources of variation in sexually…[3 marks]
  2. 5(a)(iii)"A gene mutation which is the result of a deletion may be more harmful than a mutation resulting from the substitution of one base." Discuss this statement…[4 marks]
  3. 5(b)(i)Explain the role of 'restriction enzymes' in bacterial cells.[2 marks]
  4. 5(b)(ii)Comment on the role of restriction enzymes in genetic engineering.[4 marks]

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